Thanks for the response.
I will try taking the test again after a couple of weeks of studying basic math concepts. I am good at problem solving and doing math in my head, but I have A LOT of gaps in my Quant. E.g., I don't even remember simple things such as finding the length of unknown side of a triangle. So, I'm going back to the extreme basics to get these down. I bought a Kaplan math workbook today, which gives a lot of basic problems to work through, and I'm also using a lot of free resources online for basic algebra and geometry. As far as verbal goes, I'll focus most of my time in the next two weeks on sentence correction to see how much that changes my score, before dedicating a lot of time to RC/CR.
Another problem I have is time management. I finished the Quant section with 31 minutes left, and the verbal section with 11 minutes left. I must have made mistakes because of rushing because I was nervous of time. I will coordinate the time with every fifth question so I can slow down, or speed up as I go, and not constantly feel stressed by the clock.
I will check out the GMAT Club study plans. Thanks for the heads up.