in the warm up ring make sure you are passing left-to-left, and call out inside/outside to keep things in order.
Bring extras of anything you have
Don't forget a first-aid kit, it gives you a peace of mind being prepared.
Make lists of everything and double check it!
Make sure your hair is neatly tucked into your helmet WITH A HAIRNET(or in a low, covered bun)
Bring LOTS of water, better safe then sorry!
Make sure your bit is allowed
It never hurts to have rags, they work for last minute cleaning, sweating, polishing...
Every so often I like to tell myself im having fun, because if I tell myself enough, I usually am(: