Exactly! Lynclarke hit the nail on the head. They do not *own* that house; the bank does! Think of it that way... it will make you feel better!!!!
It is your day. Try to relax and as the other poster said, 'Don't sweat the small stuff.' When I am stressed out, I try to think of the absolute worst thing that could happen and then I can talk myself out of being worried (because the worst thing NEVER actually does happen).
Congratulations!