The problem is, I can't put a desk or whatever in my room, because there isn't enough room, and I don't want to take my computer into the living room. Because of my OCD, I don't want to risk anyone touching it. If someone comes, it will seem weird if I rush to take my computer in my room and I prefer not to leave it on when I'm not using it.

I learned to type in the proper position, and I think I do best in that position, but even then, I've had problems. (I used to sit in the normal position when I used my bf's computer over a year ago at our apartment before we moved.) I would find my shoulder tingling and very uncomfortable.