Keep scoring 33-38 on Quant... how to improve? :S

Hi all, I'll be writing the GMAT in 2 months and am quite worried that I'm only scoring 33-40 the Quant range, despite 2 months of study already. How can I improve with 2 months left to go?????? 1) Veritas Prep Quant Practice test - Q33 2) 800 Score Quant Practice test - Q38 3) Veritas Prep Quant Pr...