I found earplugs and those sleep mask eye-cover things to be somewhat helpful. You could also try listening to music on your headphones, which will help distract your mind a bit.
As for moving to another room, it's not necessarily disasterous. I had very serious issues with my roommate in freshman year, who I am almost certain was bipolar. We had very bad arguements and we needed to see the resident cooridinator a few times a week until we could get the problems solved. I also got sent to counseling : /. Things never got resolved. I just ended up moving out midway through the semester, and while my second roommate was not ideal, she was far better than the first. It made a lot of things easier for me to deal with.