How can I up from 430 to 650?

[herman2210]

I took the GMAT with an score of 430 29Q and 20V, but the median for the B-School I want to apply is 650.
I study during 3 months, I took several practice test scoring between 470,500,530,490.
Im not sure but I think I was burn out, because I spent 3 month full study by myself the OG 12th, OGV 2nd, OGQ 2nd and the Manhattan Gmat books. My job is very demanding, so I studied mostly of time very early in the morning, after hard days of working.
In the real test I had problems with timing in the Quant section, I realize that I had 20 minutes left and I almost finish the whole section, only 4 question left.
In the Verbal section I dont get it, I though I did it well. All passages in the reading section were easy for me and I was familiar with the topic. The timing was good too, 2 min for question.

What strategy of study should I have if I retake the exam in 6 months? What do you recommend me? How can I up my score to 650? What is the smartest and effective way to get it?

[StaceyKoprince]

Take a look at my reply to your other post. :)