<p>You’re probably already starting to do this if you’ve run out of prep materials, but have you tried repeating sections from the Blue Book? You’ll probably end up missing many of the same questions (despite thorough review of your wrong answers on previous occasions); the repetition will allow you to internalize the mechanisms used by SAT question writers on the critical reading and writing sections (you obviously don’t need to prep for math). I have 800s in critical reading and writing (740 math :() and I’m a firm believer in the predictability of both these sections. Good luck!</p>