It isn't easy to get to the place where you can say "I like that, it speaks to me" without thinking in a judgmental way---being a perfectionist will help you in your work but it will also be a struggle as you work to express what you feel and "see" & use various mediums etc---I think it is pretty normal in the setting you are in (school is both supportive and competitive) to feel as you do----(((((hugs)))))) ...you can use your work to express these feelings also....if you want to....or, just hang in there & talk to others, I'll bet lots of artists feel this way at some point...