Good luck.

Make sure that you plan your day so that you can fly a couple of practice flights before your first official. You want to get a good needle and check your flight time. The different weather and the different location will change your needle setting from the last time you flew.

One hint.
When you're on the circle and it's time to wave at the judges, give 'em a big wave and then forget they're there. And then take a deep breath. You're about to have the best time of your life.