Not so much a learning process, as a re-examination of things I already believed.
The verticals don’t have to be vertical. The subject doesn’t have to be in focus, or even the main focal point of the image. You don’t have to fit everything in… often, it’s better if you don’t. The subject/object can be viewed in a non-typical context. It doesn’t have to be pretty. Details matter… or don’t… and imperfections can be perfect.
Sometimes it’s as much about what it feels like as what it looks like.
Looks horrible, but you still like it? Sounds good to me.