Beaten by GMAT 650(Q48,V31)

[The Apprentice]

I gave my GMAT last week and scored a 650. I feel so dejected considering that I had scored 700+ in my last 4 MGMAT Prep and 740 in my second GMATPrep test. I am not sure what went wrong during the exam. I finished the Quant section 5 minutes early, and although verbal not exactly a piece of cake, I felt I did well. Clearly I did not.
During my preparations I used mgmat, kaplan, OG11 and official quant & verbal guides.
I am going for the second attempt in a months time. Any feedback and/or advice is highly appreciated. Verbal clearly was the pain area in the actual test. Can someone tell how to improve the verbal score?