Last chance!

<p>Hey guys, I took the SAT in December and got a 1930. I got my scores back from the May SAT and found out that I got a 1950, with a superscore of 1970. I improved by only 20 points! I will be taking them again in October and that is really going to be my last chance so I'll greatly appreciate it if some of you could give me some advice!
I got a 600 on the reading both times I took the test but I really want to bring it up to a 700! How can I do so? I've finished most practice tests from the Blue book and I'm going to start using Barron's and Princeton Review to help.
I got a 710 and 690 the first and second time respectively on the math section. I know how I can bring it up to about a 750 but, again, if you know any way that I can improve my score fast, I would appreciate it a lot!
Please help guys I really want to do well :(</p>