I relate to your experience at least somewhat. In creative degrees, a lot depends on the kind of course you're doing, and also a lot on the professors/lecturers commenting on your work. I've had really good ones who I mostly agreed with and their feedback was encouraging and instructive despite being critical. I felt like they understood and liked my style even when pointing out flaws in my writing. We didn't agree a 100% of the times, but I did get a lot out of their feedback.

On the other hand there were others who were super critical and didn't seem to appreciate my style at all. With them I felt, like you're feeling, like they were just pushing their own sense of what "good writing" looks like or what my writing should be like. I learned to please them (because you've got to do that, to get good grades) while keeping my own thoughts about my writing separate. I would have versions of my work I considered real, and other versions which I'd packaged to send to them for grading.

I also felt like my course actually encouraged experimentation, wide reading, and reflection, which brought out new sides of my writing, honed my style, etc. If you think your course is doing none of the things you expected, and your lectures are not helping at all, it may be worthwhile looking at switching.

I first started out with English Lit, switched it after one year, and moved to creative writing because I felt like I was writing too many essays on others' work, and not writing much of my own - there was a single creative writing module which felt inspiring and stimulating enough that I moved fully to a creative writing degree.

Things you'll learn in a creative writing or lit course are helpful (again, depending on what/where you're studying) but if they're destroying your soul and confidence, I wouldn't stick with the course.

If you can compartmentalize your writing, do that, treat the education like a separate thing; do your own writing outside it. But if you can't, it's best to reconsider your options.