I would suggest everyone to take GMAT only when they are fit and fine. We should know that GMAT dates can be extended for a fee. sickness can greatly affect your performance. In the test center It is too hot. You will need rehydration frequently. another mistake I committed was regarding the level of preparation. I think I took the test prematurely. I relied too much on having had good scores in
Expert's global tests. later I realized that I had a big scope to improve in RCs, SCs and CRs. After my 1st GMAT, I found my approach for RC completely changed for good. It is something that takes time to build up. Give yourself that time. test yourself on Gmat club official hard level collections before you are ascertained that you want to write the tests. I would suggest trying to solve all OG questions of GMAT club before selecting the test date. In the process you may realize that you have solved enough hard questions and are prepared for the test. That's when you take the 2 paid GMAC tests. Many test companies don't let you face the hard questions. It's ok. Find your own way to solve RC. Initially I thought it was impossible to write major details as GMAT Ninja does. I tried to devise my own way to solve RC and borrowed bits and pieces from everywhere while also testing my approach. Now I only need practice since I have the accuracy now. You should know that you can develop your own approach by following GMAT Ninja's and trying to imitate them. It is 100% possible.