Do I deserve to write my book?

TLDR; Do I deserve to write a novel with very little reading time & absolutely no experience in writing?

I've been making an outline for my book over the last few months, with no previous experience whatsoever. I'm getting close to actually writing the book itself, from an idea I thought of five years ago but gave up on due to a mental breakdown.

I'm healthy now, & started all over on my progress with the same idea. I've only ever read two book series in my life, each one I had finished within a week. I didn't go to college for this, but I used to be really creative when I was younger. I made some cool YouTube videos from my own ideas but never became popular past the locals.

I'm 28 now, & want to turn one of my favorite daydreams into a book series with no experience in writing whatsoever. My wife said she has seen that when I really want something, I always get it. That gave me more confidence than I've ever had in my life, but do I even have the right to be doing this?