GMAT scheduled for 9/01/2013. PLEASE HELP. less than a week!

hi
so i started my preparation on and off since July, I was taking a lot of tests but due to lack of guidance, i didn't know what the scaled score means.

recently when i took the GMAT prep, i found out my score is

GMAT prep 1- 650 (Q48, V31)

GMAT prep 2- 650 (Q49, V30)

I am using Kaplan for the past 3 days and after attending the CR online classroom session, i did try the CR OG'13 questions; dividing the 124 questions into 4 sections of 31 questions each, my accuracy so far has been 76%.

I plan to follow the same strategy for the next 7 days, and plan to exhaust OG, Kaplan(the main book, latest edition) which has 40 questions on CR, and manhattan.

I have to submit my score by march 31, so any which way i Will take a second attempt somewhere in February. I am taking this attempt to get a feel of gmat.

please suggest other strategies or make amendments to my present strategy.

ALSO,

since i have exhausted both the GMAT preps,
i wish to take a practice test to give me a real indicator 2 days before THE GMAT, so which test should I take?

hoping for a fast response

Parul Sharma