HI,

My name is Marco and I'm an international student trying to improve my score.
About a month ago I took the gmat and score 610, but I really wanted to score at least 680, so I've been studying a lot since then.

I've done all the questions on the OG, verbal review, Kaplan, kaplan 800, Manhattan gmat quant and Sc, plus a bunch of gmat simulations. The following were my results before I took the gmat:

Kaplan1 540
kaplan2 520
kaplan3 540
800 score 530
800score 530
Mgmat1 640
Mgmat2 660

gmat prep1 610
gmatprep2 590

after studying a month I decided to take another Mgmat simulation and my result was 600....Plop????

I checked the questions and realized that I got more questions right in Math and in verbal than in the other time, plus I got more 700-800 questions.
[b]I SIMPLY DON"T UNDERSTAND THE SOFTWARE OR WHAT???[/b]

When I worked through kaplan 800 I got 80% of the questions right in every section and the book says that its questions are the hardest that anyone can see.

I don't know what else to do to improve my score, can anyone HELP ME PLEASE? I'm starting to get crazy!!!!!!!!!