I once thought to learn classical guitar so my teacher had me doing finger exercises starteing whith low open E and play single frets with all four fingers one at a time through all six strings and then back down again I think he may have been a Nazi.
I taught myself how to read tablature and copied lead solos from music books. Back in the day we all loved Chuck Berry and would try to copy his licks people sometimes called rock-n-roll noises.
Chuck Berry would do his famous chicken walk while making his ax sound like a chicken clucking. I've never seen anybody that could do that but him.