My first contest was crazy . . . and fun!
The number one thing to help you have a nice time is to prepare, plan and have it in writing - because, as it was mentioned above, once you haven't had any decent sleep all night, your brain needs all the help it can get.
I find myself referring to my time line about every 15 minutes because I get so tired and punchy as it gets closer to turn in. Plus my wife helps keep me on track - she's a great team manager!
Also - after each turn in, I sit down in a chair, close my eyes and breathe deeply for at least 30 seconds, repeating to myself: relax, breathe deeply, focus and concentrate. Which of course is hard to do if you're hung over . . . like they all said above -
Excellent advice from everyone! Thank you!