Stuck with low Verbal Scores

I gave my first GMAT exam in September, even though when I was scoring around 650 (Q50 in 4 tests, V30 in average) in gmat prep tests. I scored 590 (Q49, V23)in the real gmat exam as I was occupied with some office work. Should have kept my phone aside instead. So I took egmat subscription to improve my verbal score. After doing all the verbal exercises and as I felt a little comfortable with verbal I reset all the GMAT prep tests (1-4) I had. 710, 670, 750 & 760 are the scores with Q50 in all of them and V 42 being he maximum score. Then I reappeared for my real gmat just recently, and I faltered! Q50 & V25 a total of 630 ! I couldn't apply any of the verbal strategies such as rethinking for CR, meaning based approach for SC etc,. I just tried to find the answer among the choices and ended up scoring pretty low. And I'm planning to apply for round 2 deadlines. I don't understand what went wrong. I request someone to give some suggestions on improving the scores or strategy, if any. Now I'm rethinking whether to take GRE instead.:/

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