Help with improving score in GRE?

I have 2 months for GRE exam. In the powerprep, i got 1100. 400 in english and 700 in maths. I want to reach atleast 760 in maths and 550 in english, i.e. 1300. How should i work on my maths and english?. i have bought kapan and barron already

Thanks a lot