What are some of the things you do to combat anticipated increased stress/anxiety?

I have realized lately that I handle stress and anxiety very badly at home. I mope, question everything, and become ridiculously fearful... I have an exam coming up and I feel that negativity ramping up again. It probably isn't helping that I just started talking to my therapist about this stuff. My instinct right now is to shut myself in my room and not talk to anyone for fear I will either annoy them or start a fight... From what I have read here, those who have been the loved one who is pushed away don't like it. Perhaps I should walk around outside or wander around at the store.

I'm just so afraid of annoying people because I get to feeling like I am not in control of my fear; there are so many good people in my life I feel that I don't deserve and I don't want to become too much for them because I know my perception is skewed right now. Its like I need a giant disclaimer banner!