It is very surprising to see that you have obtained the exact same score in the three tests you have taken. March 20, 550
March 22, 550, March 31, 550. Although you said that you have studied a lot between these tests, your scores indicate that you probably did not analyze your test results as extensively as you should have. In general, you should go back to your test results to check answers and explanations, specifically for the ones which you got wrong and the ones which you got right for the wrong reasons. I suggest you invest a couple of hours to do that; doing this will enable you to properly identify your focus areas across both the sections, so that you can utilize your two weeks of study time addressing those areas.

My debrief at the following link contains some strategies to analyze your practice tests.

https://www.beatthegmat.com/my-debrief-f ... 54581.html

Also, regarding study materials, it will not hurt to refer to another source added to OG, such as Manhattan Review guides or Princeton Review etc for practice problems. However, given your limited time frame, you may want to work more on the OG problems, finishing all problems and reading in details the explanations to all the problems.

Hope that helps you.

Thanks for your reply!

Yeah it's a little strange to get the exact same score every time! I think I might be rushing in my studies- reviewing the answers too quickly. I got Kaplan's math workbook and I'm doing the problems in there now as I finished the quant questions in the OG. In general, I like this book as it offers more general explanations than the OG.

I'm planning on taking another prep test tomorrow.
Have a great weekend!