Need help with strategy

Ok,

So I have taken 3 MGMAT tests so far and my exam is Aug 24.
MGMAT 1: 640 Q:44 V:33
MGMAT 2: 580 Q:40 V:30
MGMAT 3: 580 Q:46 V:24 (today)

I need help, I am trying to get above 740 as my goal and I am just getting frustrated. I have been practicing math for the last week, so I guess I can attribute some of my quant success to that but my verbal is just so terrible! Now for the analysis: I looked at my score reports and questions, my best area in verbal is Reading Comprehension. My worst areas are SC and RC both being about the same percentage wrong. I have also rushed in both Quant and Verbal for the last 5 questions so I almost always end up getting those wrong. I am just lost at this point because according MGMAT most of the questions on average that I am getting right and wrong are in the 700 - 740 range for quant and 660 - 700 range for verbal.

Does anyone have any suggestions to improve my score?

Thanks