"When I Was Your Age" — Turn Your Parenting Wisdom Into a Book Your Teenager Might Read When They're a Parent Themselves

Recognise the moment? Your teenager wanders through the kitchen looking faintly disgusted, headphones on, phone in hand. You say something — maybe a remark about the dishes, maybe the observation that it's 18°C outside and woollen socks are not strictly necessary, maybe just an attempt at "how was your day?" The reply is a sigh so deep the windows rattle.

And from somewhere inside you, the sentence rises. The same sentence you once swore — swore — you would never, ever use.

"When I was your age…"

Whether or not you say it out loud is irrelevant. The teenager hears it either through their ears or through their spinal cord and responds with the same sigh, only slightly more intense. The lecture is not landing today. It won't land tomorrow. It probably won't land in the next five years either.

But what if you stopped trying to lecture? What if you wrote the whole thing down as a book instead?

Not for your child now — for your child then, the day they have a teenager and are sitting in the kitchen wondering: "How on earth do you live with one of these?"

Why this is a surprisingly good idea

Let's think it through. A teenager is biologically engineered not to listen to their parent. This is a feature, not a bug. They have to separate, rebel, work out who they are — and the parent's life experience is exactly the wrong tool for that process. Trying to deliver it is like trying to feed salad to a cat. Healthy in principle, frustrating in practice for both parties.

But twenty years from now? Completely different situation.

By then, your child is forty. They have a teenager of their own who is looking at them with the exact same look you're getting today. They're sitting in the kitchen wondering how on earth one survives this age. They dredge their memory for something their own parents said — and remember mostly that they sighed a lot.

And then they remember the book. Your book. The one you made when they were the teenager.

A gift with a time-delay fuse

Most parental gifts are immediate. A birthday present is opened and used the same day. A Christmas gift delights on Christmas morning. A graduation gift gets celebrated at the graduation party.

But there is one kind of gift whose full value only becomes clear twenty, thirty, forty years later: a parent's life wisdom, recorded while it was still fresh. And especially the wisdom of being a parent — everything you're learning right now, by living with a teenager.

This gift works like a wine cellar. The longer it waits, the more valuable it becomes. And there is a very specific moment when it's meant to be opened: the evening your grown-up child sits in their kitchen, head in their hands, wondering aloud how raising a child can possibly be this hard.

That's when they remember the book. And when they open it, they find the reality you actually lived through. Not the glossy version, the real one.

What the book should contain (i.e. everything you can't say out loud right now)

A "when I was your age" section

This is a natural place to start, because you already have a vast amount of material ready in your head. All the things you've wanted to say but which would have gone to waste. Now they get the right audience — the one that actually wants to read them.

What being a teenager was like back when you were one. What you did on weekends. What you dreamed of. What you were afraid of. What you took for granted, what you found strange.
What it was like when a phone was on the wall and had a cord attached. What that meant for your social life, your friendships, your dating, your rebellion.
How you listened to music before everything was a button away.
What happened at school. How maths lessons felt. Who was the teacher who saw you. Who was the one who didn't.
The moments when you realised, for the first time, that your own parents were people and not omnipotent beings.

When your child reads this section twenty-five years from now, they suddenly become your age. The generation gap disappears for a moment. That is rare and valuable.

A "what I'm learning the hard way right now" section

This is the sharpest part of the book — and exactly what your child will need as an adult. All the things you are learning as a parent right now. Not general parenting theory, not wisdom from books, but the real lessons of what's happening in your specific family this year.

What worked unexpectedly. What flopped reliably.
The fights that felt like the end of the world but actually resolved in a single evening.
The moments you held your tongue — and the moments you didn't but should have.
Things they don't tell you at the antenatal class.
The days you made a mistake, apologised, and noticed that it actually strengthened the relationship rather than weakening it.

This is the section your child will most likely read late at night with a tablet in hand, after their own teen has locked their door. They will need it at that moment more than they need sleep.

A "what I love about you right now" section

The most tender part of the book. Living with a teenager is so full of negotiation, boundaries and everyday friction that saying "I love you" out loud tends to get forgotten — or it doesn't land because the teen is, at that exact moment, irritated about something you couldn't even identify.

You're allowed to write down everything you love about your child right now. Their humour. Their strange passions. Their habit of defending whoever's been treated unfairly. Their habit of sleeping until mid-afternoon at weekends. Their absurd clothing choices. Their friends' nicknames.

This section may not land today. But when your child reads it in the middle of their own teen years, they understand something profound: their own parent looked at them with that same loving gaze even when the teenager themselves was being impossible.

A "lectures I never got to finish" section

This is the funny part of the book, and it should be. Write down all the speeches you tried to give but which crumbled before they could cross the threshold of the room. Money matters. The importance of sleep. Why hating someone takes more energy than letting it go. Why that one friend might not be the best friend. Why money doesn't make you happy but the lack of it makes you unhappy.

Don't try to get these read today. Write them in the book. Your child will read them as an adult and notice they were wrong about roughly two-thirds — and that's a good ratio. For the remaining third, they get the satisfaction of having managed perfectly well without the parental lecture.

A "what I hope for you" section

The book's emotional spine. No promises, no demands, no secret expectations. Just what you genuinely hope for your child's life. Goodness. Enough health. Friends who stay. Work that feels like yours. Relationships with respect in them. Children, if they want them. Peace, when the world is loud.

This is the section that, after reading, the grown-up child probably wipes an eye and calls you. Or visits the cemetery. Hopefully calls you.

And yes — the therapeutic side

It would be dishonest not to mention what's obvious to anyone who has lived with a teenager: there's a rather strong therapeutic dimension to this project.

When you sit down, pick up your phone or a recorder, and start talking, something shifts inside you. Things that felt rage-inducing an hour earlier start to look completely different once you put them into words. Funny. Touching. Above all: temporary.

A parent who processes life with a teenager by telling the story of it — not complaining, but examining it calmly from the outside — tends to walk back into the kitchen a little more settled. The lectures that would have flown out a moment ago no longer feel quite so urgent. And that, in turn, makes the teenager respond better, because they notice the change in the atmosphere too.

In other words: writing the book may genuinely improve the relationship as it stands right now — even though the book's entire original purpose is to be read twenty-five years from now.

A tip: this is exactly why you should record in the evening, when the day's friction is still fresh. Not the following morning, when the adrenaline has subsided and the "well, it wasn't really that big a deal" filter is on. In the morning you remember things too kindly. In the evening you remember them as they were.

How to actually do this

Writing is hard work. Especially when you've already been through several teenage-initiated negotiation rounds during the day. Don't imagine you'll sit at a computer for two hours every evening to write. You won't.

Speaking, on the other hand, is surprisingly easy. Speaking doesn't require summoning energy — it happens almost by itself, when the moment is there.

Writing by speaking is an especially good fit for this project, because:

You can record anywhere — in the car on your commute, in the evening at the edge of the bed, on a walk, in the sauna (well, maybe not the sauna).
A single recording can be 5 minutes or 30 minutes, whatever fits.
You don't need a structure in advance. You just say what's on your mind right now, and the AI helps arrange the pieces into a sensible order later.
The feeling comes with it. Speaking carries a tone that often disappears from writing. Your child, as an adult, will hear how something was said — not only what was said.

In practice: the next time your teenager has retreated to their room behind a slammed door, pick up your phone and record five minutes about what just happened and what you want your child to know about it when they're grown up. This doesn't sound like a serious project. It isn't a serious project. But after about fifty such recordings, you have a book in your hands.

Book structure — three practical models

A chronological journal

You move at the pace of the calendar. Each chapter covers a few weeks. This is the easiest model because it requires no planning in advance — you just tell what happened during the week and what you make of it. As a bonus, you end up with a book that documents the teenage years in astonishing detail, year by year.

A thematic collection

You arrange the book by topic: friends, school, rebellion, money, love, food, sleep, family, the future. Each chapter gathers together all the memories and lessons about that theme. This is a little harder to assemble, but it gives the reader easier access to the parts they happen to need at any given point in their own life.

Letters to a future parent

You write directly to your child, but in their future role as a parent. "When you're 42 and your teenager slams the door, remember that…" This is the most emotional and the most demanding model, but if it suits you, the result can be genuinely powerful.

You can also combine these. Or switch styles partway through. The book is yours, and it won't be read for a long time anyway — there is no "right" way.

What if my teenager finds out I'm writing this?

Good question, and the answer depends on your child. For some teenagers, knowing that a parent is writing them a book feels moving and meaningful — even if they don't show it on the surface. For others, it can feel intrusive or even alarming ("what are they writing about me in there?").

Three recommendations:

Tell them the broad strokes, but protect the detail. "I'm writing a book you can read as an adult" is enough. The child knows they've been seen — without worrying that every argument is going into the text word for word.
Don't write a book that contains secrets delivered with malice. This may seem obvious, but it's worth stating. The book is a gift, not a court transcript. Difficulties belong in it, but the tone is ultimately warm.
Ask your child too. Some things you can collect directly: "What do you hope I remember about this year?" The answers can be surprisingly emotional, when the teen gets to focus on it in peace.

How long does this take

The good news: this isn't a multi-year project. The practical scale looks roughly like this:

Recording: 30–60 recordings, each 5–15 minutes. These distribute naturally into the moments when something has just happened and you have something to say about it. Total elapsed time is roughly 6–18 months — exactly enough to include different seasons of teenage life.
The AI does the background work: transcription, structuring and turning the material into chapters take minutes.
Review and polish: a few evenings once the material is in place.
Getting it ready to publish: cover, layout, download as an e-book or order as a printed book.

You can also make it a continuing project. One lovely model is to produce a new edition each year — so that eventually a small shelf holds five or six volumes covering different ages. Eventually the grandchildren receive a whole series.

Where to start right now

Don't start with philosophy. Don't start with parenting theory. Start with what last Friday evening was like.

What happened? What was said? What was the argument about? What surprised you positively? What surprised you negatively? What did you want to say but decided not to? What do you hope your child knows about this particular evening — not now, but in 2051, when they're thinking about their own teenager's Friday evening?

Pick up your phone. Open Vellu.ai. Talk for five minutes. Stop.

The journey continues from there — one evening, one lecture, one declaration of love at a time.

And one day, sometime around 2050, your child will open your book at the kitchen table, read one page, and say out loud: "Well, here it finally is. When I was your age…"

Frequently Asked Questions

I'm exhausted by life with a teenager — do I have time for this?

That's exactly why this works. You don't sit at a desk to write — that would require energy you don't have. Instead, you talk for five minutes when something has just happened. It takes less energy than mulling the same thing over in your head, because putting it into words is a release. Many parents describe the project as adding energy rather than draining it.

My child's teenage years are only just starting / my child is already a grown-up — is now the right moment?

In both cases, yes. If the teenage years are just beginning, you have a rich content phase ahead of you — the book grows naturally with the child. If the child is already an adult, the memories are still fresh and you can write retrospectively — often a lot more wisely than in the middle of the moment. In both cases, the project serves the child's child, who hasn't even been born yet.

My child is an adult and won't be having children of their own. Is the project still worth doing?

Yes. Even if the book's original target audience was "the child once they're a parent themselves", the book also works without that scenario. It tells your grown-up child who their parent was during the teenage-parent years. It's just as worth reading — it doesn't need grandchildren to land.

Can I write the book for my teenager to read now?

The technical answer is yes, but the practical answer is usually no. A teenager is not biologically a receptive reader for a parent's life wisdom — which is exactly why the idea of a second-best audience (the grown child as a future parent) is so attractive. You can still write the book with the thought that the child reads some parts younger and other parts only later.

What if I write something my child disapproves of as an adult?

Honesty is this book's greatest strength. As an adult, your child will appreciate an honest, slightly imperfect parent more than an idealised one. The main rule: write with warmth, even when you write directly. Avoid bitterness, avoid blame, but don't try to gloss things over either. The book gets better the truer it feels.

Can both parents write the book together?

Yes, and it's often a lovely choice. Two perspectives on the same teenage year make the book multidimensional. Record either separately or together, and let the AI weave the material together. The same works for separated parents too — two independent books that tell the story of the same child's growth from two households is its own kind of genre.

How much does this cost?

Made with AI, the project is significantly more affordable than traditional writing or hiring a ghostwriter. Vellu.ai runs on credits, which you can buy as one-off packs or as a monthly subscription. Exact prices and per-operation credit costs are on the pricing page.