First, I want to apologize if I post on the wrong place.

I really don't know what I should do now.

Actually, I started preparing GMAT since last August and had real tests last December and this February.
They were around 5--. 6/15/09, I started my preparation again. However, after 7 weeks studies, my MGMAT practice score today was still 550. Sad During these 7 weeks, I had 9 practice exams.

6/15, GMAT Prep Q41, V16, 460 (without any preparation, I just want to
see where I was.)
6/29, GMAT prep Q42, V21, 530 (I was very happy because I saw the
improvement)
7/6, Kaplan Cat Q36, V,31, 540(Very happy to see the verbal to 31,
everything still looks good, because
I was still improving. )
7/11, MGMAT Q42,V31, 590 (I was super happy as I was so
close to 600!!)
7/14, MGMAT Q42, V19, 520 (Something went wrong)
7/18, MGMAT Q32,V28, 510 (Getting worse)
7/22, MGMAT Q37, V22, 500 (I think the practice tests were too close
to each other, so I decided to
wait for another week for the next one)
7/30, MGMAT Q43,V28, 580 (Wait for another week seemed to work.)
8/5, MGMAT Q38, V28, 550 (I am really frustrated about this score
and don't know where went wrong)


I will have my GMAT next week, but I just changed it. I really hope that I could beat the GMAT this summer. But now, I can't even pass 600. Sad I have finished OG 12, Kaplan course book and all the MGMAT, GMAT Prep, Kaplan Free CAT practice exams and went through my notes and error logs everyday, as I saw many people said that this is crucial for beating the GMAT.
Now, I will add official verbal and quant, and Kaplan 800. But I don't know if there is anything I need to change or do more. I will have my another practice exam on 8/12. I hope I can pass 600 this time.

I really need help…………….
What should I do now…………………………

Thanks for reading my post. I will not give up and keep working. I WANT TO BEAT THE GMAT, TOO!!!!