Man! This story is great. I feel like I am in a similiar situation. I have been studying for the GMAT since the end of May and I was beginning to feel like I had no chance of getting my goal of 650 (I know that's low but I am certainly not a genious and felt like this was a stretch). I have been taking the Princton Review and GMAT practice test every week since.
GMAT P1 - 570 Q40 V27
PR P1 - 590 Q40 V30
PR P2 - 590 Q42 V28
PR P3 - 570 Q44 V23
PR P4 - 590 Q44 V27
PR P5 - 590 Q44 V23
Then I retook PR P1 and got a 680 Q46 V37
Even though I didnt remember answers or really even that I had taken that test before I decided I shouldn't get excited because I must have done better for some stupid reason.
This past weekend I took the 2nd GMAT practice (that you get when sign up) and got a 700 Q48 V40!!!
I broke down and was the closest I have been to crying in years. The week before taking this last practice I didn't study much at all, but I took a needed break and slept (rather than my 3hrs a day studying, 8hrs of work and 6hrs of sleep).
I am taking my GMAT this Saturday and I have more confidence that I will do well than ever! I really feel like I know what I need, and all I need is good sleep and a good attitude. I was so upset after having 570-590's for over a month and I was working so hard, but it all feels worth it now, and I haven't even taken the test yet.
I just feel that having a clear head and a good attitude can really, really help anyones Verbal who struggles with it.