I have been studying off and on for the GMAT for the last couple of years.
Late summer, I scored 640 (42Q, 38V) and 650 (39Q, 42V) on the GMATPrep exams.
Two days before the actual exam, my GF dumped me cold-turkey

. I scored 550 on the actual (32Q, 33V), ending what was a pretty dismal week. It kinda knocked the wind from my sails and left me doubting my ability.
Do people generally score in the same range as the GMATPrep? I thought I was able to concentrate effectively realize I hadn't slept properly in several days and was not in the best frame of mind.
Was looking at re-writing it in mid-January but think that I might bump it up to mid-December.