How to prep for PSAT 9?

Hello! I recently took a PSAT 9 practice test as my school requires us to take the test in the spring, and scored 1230 out of 1440. I haven't done any testing like this before and have no real idea on how to improve, so any tips? I would like to get a 1300-1350 if possible, and im pretty confident on the reading portion, (650/720) thanks!