Yesterday I took the GMAT and ended up canceling. From my gmatprep and manhattan gmat practice exams, I was scoring in the 680-700 range. I retook some gmatprep practice exams over and scored 750-760 on them but of course they're inflated because some questions were repeats. On the practice exams, my breakdown was usually around 44Q and 39V but on the good days it was as high at 50Q and 44V.

When I was looking through the my old practice exams I noticed that most of my mistakes were careless mistakes so I decided to be extra careful today by double checking everything (I think this was what really killed me). As a result I ran out of time on both sections. I usually finish right on time for math and have around 7-10 minutes to spare on verbal. But yesterday I had to guess on the last 3-4 questions on math and had around 20 minutes left to finish 20 Qs on verbal (down to around 9Qs with 7 minutes remaining). So the last 10 questions on verbal I just guessed without even reading.

So time was what really killed me yesterday. Because the schools that I want to apply to generally require 700+, I decided to cancel. However upon reading experts here say not to cancel, I feel even worst than I did yesterday. Now I'm wondering if I did the right thing by canceling.