I can totally relate, bro...

Music theory is tough when you learn to play first and try to learn theory later. It seems easier if you take piano lessons as a kid or something, and then pick up guitar after you already understand some theory.

Trying to memorize everything now is crazy, because I forget it if I don't use it often. I think immersing yourself in it makes it easier...that's what they do in music schools, and it seems to work well.