I have taken MY gmat today 6-7 months of preprations and have been living to perform my best on this G Day. But killed brutally by GMAT

. Yesterday, I took GMAT prep and scored 710 with Q-49 & V-36 and in Manhattan last tests also scored 650, 670, & 720 (retake), but still failed miserably on final G Day with score of 560 (Q-48 & V- 20). When today morning, screen at test center popped up score of 560 with V - 20, I was not disheartened or frustrated but looked in the sky and told to GOD that there must be something good for me in future. Immediately coming to home after terrible performance, I did next thing is to take next GMAT date after 5 weeks.
I have failed miserably in Verbal section due to bug of stress of exam and my office job tensions. I need suggestions and feedbacks for retake preprations. I have already finished Power score CR Bible and Manhattan SC, taken all tests of Manhattan, some tests of GMAT Club, and GMAT preptest - 4-5times.
aimkp