I've got erflies already, I need help!?

Hi everyone! I need some calming advice! Our wedding is in 7 days - WOW- and I've already got a serious case of the erflies in my tummy. Before, I always thought, Ah, no big deal, just breathe, relax, forget about the big day coming, do something else to occupy your mind... But it's not working! I didn't sleep one wink last night. Once daylight came, I had to get up and take some sleeping pills to try to get a few winks at least. My stomach is in knots and it's really hard to clear my mind. Everything is done, and all last-minute tasks have been delegated. There's very little left to do. So it's just sit and wait and hope the weather holds. I guess I just need a few words of encouragement and ideas to keep my stomach from feeling like I'm going to be sick! :) Thank you!!