Look I am not the student but I am a Tutor expert in tutoring SAT Math since 1991
I have gotten one of my student 800 and numerous students 790.
Please go over all the problems in which you made a mistake while taking the practice tests and figure out why and what mistake you made and recall not to do it when you actually take the sat.
Finish the blue book
I have lot more tests dating back 1988
Practice and learn all hard problems and learn not to make stupid mistakes Thisnk hard and apply
You will get 800
Watch all my videos http://www.youtube.com/satmathprovblems