I should also point out, if you're really into learning theory, rent a piano, and take a few lessons.

Guitar is a horrible instrument to learn theory.

It's kind of like the difference between soccer & hockey.
Both basically the same game. but with Hockey, besides the basic game, you have to be a good skater, and be coordinated enough to hit the object with a stick, instead of just kicking it.

For the record, I've played 40 years, some of it professionally.

Not just guitar playing. Its relevant to each instrument and even helps me when listening to music.