Help: Regressing after 3 month prep

Hi all, Gmat is killing me. I have regressed from 520 to 450. I have been using EMPOWERGMAT material for the last 3 weeks. I am planning to sit the 2nd of August with a goal of 700+ (obviously.) I have been preparing for the GMAT since early March. My diagnostic test from GMATPREP resulted in a mise...