I know EXACTLY how you feel.

I hit a low and what got me out of it was learning a song I love. Just like with your Metallica song. I did the intro to Yes Roundabout. I was patient, slowed the video to.25 and xstick with it note by note.

thos approach did not work albefore, but after some boring trading in chord changing and scales it was a different story.

my takeaway: learn songs.

Train only in order to learn songs.

i don’t agree that you ha e to progress through simple “quasi-songs” first. Do some training for dexterity and then learn songs like countless teenagers have done through the ages. Most of the stars didi it that way, I bet.

and you can trust my wisdom because i’ve Been playing guitar for over two weeks!!