GMAT Strategy

Hello!
How many times have you done the questions from the OG books and your old practice tests? Have you gone over them just once? Usually when I see someone who has done as many questions as you have, and who hasn't improved enough it is because they haven't reviewed the practice questions that they've done properly. Right after you finish doing some questions it's usually fairly easy to understand your mistakes. However, you need to make sure that you're not doing the same mistakes two or three weeks later. Have you been saving all of your work? You need to so that you can go back and look at what mistakes you've made and what areas you need to work on. When you're going back over your answers make sure that you write down exactly why you got a question wrong and what you can do in the future that would be helpful. This takes a considerable amount of time and will make each question take about 8-10 minutes (2 minutes to do, and 6-8 minutes to review). However, if you really learn from your mistakes you'll find that you'll make a lot more improvement.

Also, if you get the same question wrong a second time you'll need to come back to that question a couple weeks later.

Next, stick to the Manhattan and GMATPrep practice tests and I think your scores will be more consistent.

Finally, you should postpone your exam because it is unlikely that you'll get to where you need to be in a couple weeks.