Hi OP

Firstly don't give up, if you believe you can do it than you will achieve it. I've done the GMAT before and got my butt kicked and it was the worst experience I ever had. I just recently took the gmat again, didn't get the score I wanted, but I did improve my score by a 100 points. I went from a 510 to 610, sadly my quant performance for that day held me back from getting a 650ish score. I'am doing it again hopefully end of this month.

Point is, I remember reading that GMAC stated that people generally score worse or something small like 30 points the second time around and that it was rare for people to do a whole lot better. If I of all people can improve my score within 3 months, 10 hrs a week, by a 100 than anyone can. I'am just a slow learner since I was never good at quant my whole life.

My advice would be, if you haven't invested a lot of time into prepping for the GMAT when you were than do sample tests of the GRE and GMAT and see which one you find more towards your liking. Get a feel of both their formats and then make a decision. We could sit here and state advantages vs disadvantages of each test, but only you are able to make a decision on which one really suits you.

My reason for sticking with the gmat was because I've invested time, money and just really want to beat this test and move on with my life (haha). To me now, beating this test and getting the score I want is just something I really have to do, thus why I am sticking to it.

It really comes down to how much you really want this and how much effort you are willing to put into it. So far my GMAT journey has been... challenging. If you do choose to take the GMAT, this community always has some sound advice to help you along the way.

Good Luck!