awww, dang! What does the worst case scenerio look like for you?
Me, as a roommate-all I do is make sure I keep up with the chores I have, don't mess with other peoples stuff, and be thoughtful and respectful of the people I'm with;

How come you feel that you are stupid?

Socially awkward? In what way?

I donno, I'd want to disect and figure out where the source of your anxiety is coming from.

Most people seem to worry about getting crappy roommates, but you are worried you are a crappy roommate? I donno. Social anxiety is never fun, I shy away from parties myself. It's tough too not knowing these people but knowing that you're about to be living with them!

Depressed? I would wonder where the source of that feeling comes from too. Stress can't help at all!

I donno, I just hope you still allow yourself to feel the way you are going to feel, because people who are happy energy bunnies 24/7 are likely putting up a front, ya know? Life gets hard, and I just hope no one gives you greif about it.

Take care.