1. Know the deadlines.
2. Take the SAT Practice Test. The main advantage is to become familiar with how questions are worded. Be sure to take them as timed tests. See the SAT Practice page for a variety of options.
3. Read every day. The worst thing you can is not read everyday.
4. Study Vocabulary. It's essential and, ideally, studying vocab should take place over time as opposed to weeks/months before the test date. Reading should include a variety of genres, topics, and reading levels. Resources such as Word-a-Day challenges, cross-word puzzles and dictionary games add fun, easy ways to expand your vocabulary.
5. Get a good night's sleep before the test date.
Also, relieve the stress with a little humor: