So. Many. Times. What got me through it: I stopped comparing myself, stop setting absurd expectations, and I remembered when I was a kid, I wasn't aiming to be perfect. When I drew as a kid in elementary school, I was just excited to get a box of crayons and try out all of the colors. I was excited to see where the hell I'd end up finishing on the paper, and how much of the space I could fill. I was ecstatic my mother didn't scream at me for drawing on the walls (seriously, I drew all over the walls and she would just tell my dad "she was having fun, so I let her do it" ). That little bit of childhood bliss is something I try to keep traces of it. While I'm more mindful of trying to make a good piece, at the same time, what makes it a good piece is enjoying the creative process as well.
I have. Just looking or interacting with certain things will help your art around, though. I played the Sims 2 for a long time, and messed intricately with the faces, and body sliders and came out with a better understanding of anatomy! Same with looking at the structures of ball jointed dolls.
All artists go through periods where they are unhappy with their art. I go through it about once a week :3 I always try to keep the mindset that as long as I dont quit ill learn everything I want to know. No one just picks up a pen or a brush and are instantly world class artists, it takes time and patience. Even the greatest artists in the world were unhappy with their work at one point, and who knows? Maybe you're at that point ; )
I feel too tempted to give up on art, a lot, especially since that my skills aren't marketable enough, and when I see younger artists that are much better than me. I deleted my other account because I posted stuff that never got commented on or saw too little page reviews.