Some tips and resolutions?

<p>Hey guys, so I'm preparing for the December SATs exam, but all I can think of is doing a full practice test from the blue book on weekends. Are there any suggestions on how to practice throughout the weekdays? Cause doing a full practice test is just impossible due to school.
Furthermore, I seem to have a problem in math section; as in when I practice at home, I get a range of 720-760, but on the actual test I got a 600!
I know you're not psychologists, but did this experience happen to you before and did you find out a solution?
Thanks! </p>