Start your SAT prep early. One of the keys to becoming proficient at taking standardized tests is practice, and you should make sure that you have plenty of time to practice taking the SAT before you will need to submit your official SAT scores to colleges.
Identify your weaknesses by taking a practice SAT test. Talk with your high school's college counseling or guidance department about the easiest way to take a practice SAT. Your school may have copies of old SAT exams that you can use to determine which sections of the SAT you need the most help with.
Address your weaknesses by going over subject matter in that area. If you are nervous about the math section of the SAT review the math that will be covered on the exam. Consider buying a test prep book at a local bookstore or asking your college counselor to borrow one to help you familiarize yourself with the material.
Take the SAT as many times as you need to be happy with your score. Allow yourself plenty of time so that you will not feel pressure taking the SAT for the first time.
Get a good night's sleep before you take the SAT and allow plenty of time to arrive at the testing center. Make sure that you are relaxed and prepared.