Q: here's what i think i'm gonna try: change keys during a song and make it sound as bad and unfitting as possible. that way, i'll get closer to knowing what i like and what sounds good depending on the situation (in regards to changing keys/going into a new section). i hope this helps make me better at doing key changes that sound fitting and natural
A: make sure you learn the ones you like. because that's the whole reason you found yourself in this situation, wanting to do a 'key change.' get to the origin of your interest here