15 days to go need help!

Thank you for the advice. I do spend a lot of time analyzing every single test to recognize patterns of conceptual gaps. In fact I spent the last couple of days re-working on the questions I answered incorrectly in all my mocks. At first stamina was a major issue so I took so many tests.
After all this while I am not able to recognize the major area that is pulling my score down. My CR accuracy has always been 90% but all of a sudden it has dwindled. GMATPrep SCs caught me slightly off-guard. I faced 17 odd questions and some of them were way beyond my abilities. Its just the matter of 5-6 mistakes that is making all the difference!

Do you think working through the vast GMATPrep Documents give me an edge on the test day?

Well that was the plan - I have mastered my weaknesses, so that is not the major concern. Now the loopholes have become very erratic and cannot even find a specific pattern in them. I am clueless what to do. I will practice some material tomorrow and retake the GMATPrep keep my hopes high! Guess thats all I can do!

Aside from keeping your hopes high, maintaining composure during the test is very important.

1. Monitor time, but not too much. Check at specific intervals to make sure you are on point to finish
2. Don't let one problem drag you down. If you get stuck, make a best attempt to solve and move on.
3. Don't let one known incorrect answer ruin you. You can make it up.