@Katie20,
I can't tell from your text, Katie, just how critical the teachers are of the students in general or you in particular, so I need to know more before agreeing completely with you. I have a degree I don't use now from a university in bacteriology, though I don't regret all I learned there. Back then there was no tuition, so the school years for me were not so expensive except that I wasn't out earning money all those hours, though I did work, just at fairly low pay.
Since then I took many courses in studio art (can't remember, say thirty) in a university extension and four years of courses in landscape architecture, which is primarily a design field. All of the art and design courses were at night while I worked during the day. Most of what I learned in those courses was useful later for me as a painter and a landscape architect. Both the studio art classes and the design classes had a culture of critical review of the students' work, fully public, more so in the design courses. We learned to stand up there and take it from fellow students and from the teacher. That turned out to be a good foundation for presenting plans to feisty community board meetings in my later career. One learns to defend one's point of view and also to listen to what may be useful comments.
However, I don't remember those baths of sometimes negative criticism that we all got to some extent in my school years as being really mean spirited - usually straightforward and non sugar coated, but not vicious. Thus my question on how you have experienced the criticism you have gotten.
I also think Boomerang's solution could be a good choice for you... unless you would be sensitive to crits in a less acid type school atmosphere too.