Hey, I had the same problem my first year in college. I am assuming you're a freshman. I'm a sophomore now, and it's been sorted out, at least for the most part. During my first two semesters, I thought I knew what I wanted to do, so I signed up for a bunch of classes for that degree. Suddenly, I realized I did not want to do it at all. It was past the withdrawal period so I had to stay in, or else I would have wasted a few thousand bucks.

Honestly, a lot of people go through that exact situation in college... they change their mind then they have to suffer through the crap classes they don't care about. Your best bet at this point, I think, is to just try as hard as you can for the rest of the semester. The semester is almost over, anyway, you can totally do it!! At my university, it's almost time to schedule spring classes... Maybe if you start planning your spring schedule that's actually classes you want to be in, you will have more incentive to push through this semester.

Also, I'm willing to bet that some of the classes you are in right now will count towards a degree in acting. You're probably taking some general education classes, and intro graphic design classes, right? Most degrees require both of those, so just look at all the requirements for an acting degree, and maybe it won't seem like you're wasting time/money since they probably will count towards that degree too.

As for the OCD problem, a lot of schools have online resources with hundreds upon hundreds of scholarly articles that you can cite in a research paper. It's free for students. You'll have to check with your school, of course, but I am a sophomore and have done a lot of research papers and have not once had to go to the library and touch the books.

Are you seeing a therapist while you're at school? If not, you totally should, it can be so helpful, especially with all the pressures of college. You CAN do it, it might be really hard, but you can succeed. <3