Stupid SAT's-What is the best way to prepare for the PSAT and then the SAT?

I used the Barron's book and the official book from CollegeBoard.First,take a pracctise test to gauge where you stand.Then study the review chapters from the Barron's book and do the review questions.Then,take some tests from the Barron's book and ALL from the collegeboard official book.If you get this done,do the remaining tests from Barron's book.