Pass up every opportunity to read. The earlier you can start this behavior, the better. It is a shame that you learned to do it at all. Don't read magazines, street signs, books (especially books) or even the side of a cereal box.
Talk about your weaknesses all the time. Focus on your inability and lack of preparation until you are convinced that you are a failure-then a failure you will be.
Procrastinate. Studying can wait until tomorrow. Unless, of course, the test is tomorrow-then stay up all night studying and drinking caffeine. Jittery, overtired test takers are more successful at failing the SAT.
Worry constantly. Store up anxiety and take every chance you get to add more. Beating yourself up and procrastinating (see Step 1 and Step 2) provide lots of anxiety. Never relax by doing things you enjoy. It is more important to worry.
Ignore all test-taking strategies. Do you want to fail or what? If you are serious about this then make sure you don't even listen to people talk about methods for taking the SAT. Some of them are so simple you might remember them after hearing them only once.
Take the test using some of these fail-safe strategies. Don't read all of the possible answers before choosing. Rush. Don't guess on questions if you can eliminate some answers as senseless. However, random guessing is encouraged.