Great info so far...I would add that if you don't have driving shoes, just make sure that you wear shoes that are not too wide. On my size 10 foot, running shoes are just wide enough to catch the wrong pedal at the wrong time.
Read up on the concept of the "friction circle". Your tires have a finite amount of traction that gets divided up between braking, turning and accelerating. The combination of those inputs can't go past 100 percent. So...brake in a straight line going in to your turns, THEN make your turn and accelrate out.
Smooth inputs. You can't force the car to do more than it can do.
And finally...HEADS UP...look down the track...not right out in front of your car. If you look down the hood of your car your sensation of speed is greater and it doesn't help you control the car since you can't make adjustments quickly...you need to make them BEFORE you get there. Look down the track and everything s l o w s down. Make sense? It will.
Have a great time!
Drink lots of WATER.