My professor offered me some really good advice yesterday and I thought I'd share because it may help some people.

I wasnt feeling well about my ability to draw in his class, it's life drawing, so when I pulled him aside to ask about it, he said, "It's not about your lack of ability, it's just your lack of knowledge to fix what you see is wrong"

So yeah whenever you guys are feeling down about your art its not about whether or not you're good enough, it's only about your knowledge. Knowledge can be acquired and learned. Do some studies, figure it out, you'll eventually get it.