First time going to the track. Any advice?

Go watch a few cars run so you get a visual that day of how things go and whereabouts of where you will trigger the beams. Definitely put the effort in to make sure hoses and such are tight. Make sure you have your gear (helmet, etc.) in the car and definitely throw a Fire extinguisher in the car.

Try to relax and have a good time. Any pressure put on your is from yourself. It sure looks easy enough and like anything else if you do it some there will be "your" routine and away you go. If the car doesn't perform like you want so what.... Go get comfortable making laps...

Enjoy,
JW