I've always done 'the wrong thing' and had a pretty wonderful time doing it.
Just as a blues player can play 20 blues songs in a row but find a way to make each one different, ... I always want to find different ways to do something
If someone can relate my guitar solo to an exercise in a book... that's no fun at all.
Song ideas have come to me in the middle of interviews, in the shower, or while I'm writing another song.
Relax. Be yourself. Play a lot.
I write the songs first and in most cases teach myself the technique second.