Marathon is tomorrow!!

I am so nervous! Hope I can sleep tonight.
I've got all my gear set out and ready for the morning.
I signed up at the expo to run with the 4:45 pace group. It's a 10:53 pace, so should be pretty easy for me. I am still thinking about starting off with the 4:30 group, then falling back if need be. not sure. 10:53 is slow for me during faster runs, but then don't want to push to much early on.
Goals:
1. to finish!!
2. I'd really like to finish in under 5 hours.
3. The best would be to finish in 4:45.