I've always wanted to learn how to draw. When I was in high school, I tried really hard to learn. But I was very embarrassed by how bad my art was at the beginning that I quit. I regret that decision, and am now trying to teach myself how to draw again.
I've done that a lot. With teaching myself guitar, with song writing, with poetry, with writing novels. I get embarrassed that it isn't perfect, and just scrap it, and won't return to to for many years.
But art is one of my few outlets for me to process my negative emotions, so I never leave it for long. I don't think I could ever quit completely.
Right now I'm on an upswing - I am trying to teach myself how to draw again, I'm working on teaching myself new chords, and I'm working on filling my notebooks with as many new songs as I can. I even tried my hand at writing fiction novels again! It's very liberating. Now, if only I can keep it up...