How should I prep for the January SAT?

I just got my December scores back and I got a 2100 (700’s in each section). I also took it in October and had gotten a 1960 (CR 600 M 650 W 710) so my superscore is a 2110. I didn’t study for either (I have the Princeton Review 2400 test prep book but I only read like 3 pages over Thanksgiving break). I’m looking at a lot of the more elite liberal arts schools (Pomona, Vassar, Wellesley, Colgate, etc.) so I think I want to take it again in January (last possible time to take the current SAT). What is the best way to prep? What should I focus on? Should I read the test prep book or focus on practice tests? Thank you!

The best way to prep is by practicing on previously administered SAT tests. Or you can use the blue book from college board, which has 10 test which are exactly like the real test.

Don’t do the practice tests from the Princeton review, as they are not exactly like the real test.

First you should register! You are running out of time!