GMAT Strategy

Hi Everyone,

I need some advice. I took the GMAT this past Saturday and chocked on the quant. Math has always been my weakest subject so I wasn't too surprised. Q36 (45%) and I forgot what I got on V, but it was (92%). My total was 640.

My previous quant dianostics (both from MGMAT) were (40%) and a 41(27%). The latter I got 5 weeks ago.

I was hoping for a 700.

I've been studying with the GMAT Hacks Math Bible, and I have the OG Guides. I have all the MGMAT books, but I've found the MGMAT math books to be overwhelming. They pack so much that it's hard to remember any of them.

What I've noticed is that I quickly forget the concepts that I learn in the Math Bible. I was wondering if anyone has an outline/suggestion for a study strategy on the quant? Should I keep going back to a previous section I've covered so that it sticks?

I was thinking about basing my training around the OGs and just looking at the Math Bible whenever I miss/forget a concept to refresh my memory. I'm at a loss and feel there's not much else I can do. What I did before the test was to use the Math Bible as the "centerpiece" of my quant preparation. I made sure that no matter what I was able to go through the entire book.

If I want to get at least a 700, how long do you all think I should give myself? Is one month enough time?

Thanks for any help/insight any of you can offer. I'm feeling really bummed right now.