(please Answer!)are The Princeton Review Sat Practice Test Generally Harder Than The Sat And Other Prep Books?

Are the Princeton Review SAT practice test generally harder than the Sat and other prep books? I took the Barron’s 2400 practice test and I got a score in the range of 1450-1520. I got a 1580 on the PSAT. I took the PR sat practice test and I got a 1210!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… I’m so annoyed. [...]