how did you prepare in the first place? I got a 149 on quantitative, and a 157 on verbal. Im taking it again in 2 months and would love any advice!
Also, not sure Im in the place to give you study advice, but I have a friend who improved her quantitative by studying with people who scored higher than her! Usually there are multiple ways to solve the Quantitative problems, and exposing yourself to people who choose faster, more efficient methods can help you save time, and raise your score!