It's now quite cheap to publish a book, which takes out the financial risk.

The process of writing a book is valuable, even if you never publish it.

You're unlikely to make a financial return on it. From a financial perspective, it's a waste of your productive time/labour.

It doesn't hurt to just start telling a story & see how it feels.

I think deliberately writing it for yourself & letting go all ideas of publishing it go will help make it better.

Be honest. Be authentic. What do you want little Jake know?