Check out our test tips; they are definitely worth the read!
On Test Day: Eat a good breakfast and bring snacks; use them and the bathroom whenever you get the option to, whether or not you really want to. The SAT is a tough test and a lot of pressure, and it's easier for you to do well when you give your brain the breaks it needs. Lastly, when you find yourself getting distracted, just remember how much better your life will be if you can just stay focused and do well.