I am so emabarrassed and am feeling so low after scoring a terrible 540 on the GMAT.

Verbal was my misdoing. Here are my practise test scores
PP I (with no prep) - 600
Kaplan - 540, 560, 580, 550
PR - 540,560, 580, 610
I covered the entire OG for Sentence correction, and finsihed 100 questions each for CR and RC. I also went through the PR Verbal book. None of it seemed to have helped my dismal 25 Scaled Verbal Score. I got a 42 Scaled on Quant. I am so depressed!
Here is my experience taking GMAT-
As soon as I was assigned a computer, I realized the frequency of the monitor wasn't set correctly and I could see the screen refreshing every few seconds. I talked to the proctor and had her assign me a new workstation. The first Math question was easy, but then I got a probablility question. I had thought probability and Permutation and Combination Questions are harder and come when your score is getting higher, but that was not the case for me. I got a Permutation question right after that. I was nervous but Math was not bad in the end. I took all the breaks and used them to relax and stretch myself.
The Verbal section was an altogther different story. I thought I did most of the questions right, but apparenty they were not right enough. This is what I hate about verbal, there is no way to confirm if your answere is right. In Quant, atleast you know if your calculations don't conform to the list of choices you have. Not the case in verbal.... I read the entire passage when doing RC- that worked out better for me rather than skimming and taking notes and I finished both sections in time.
Here's what I need help with?
1) Should I take the GMAT again?
2) Has anyone been in a position like me?
3) Has anyone risen to score well from this position?
4) What has your plan of action been in a situation like this?
5) What's the best way to deal with Verbal? Do phyisical classes help?
6) I have already run out of practise tests. Are there any other tests apart from PR, Kaplan and OG that are considered good?
Thanks guys!