That’s funny, I was watching a video on Boston (the band/musician) last night and this was the exact example the OP used to describe his career trajectory. Within six years of deciding to become a musician he had a number one album. Exactly like saying ‘Im going to learn to skate’ then becoming so good at it so fast you wind up skating in the next olympics.
That sounds fascinating and I love Boston. Do you have a link?

Absolutely!

As a Boston loving millennial I had absolutely no idea what a genius / mad man Tom Scholz was/is.

How Boston Fooled Everyone and Changed the Music Industry Forever

YouTube
Thank you!