you dont have to be so disturbed. one of my friends got 490 in Jan '11 and then got 760 in July '11 after proper prep.
plan your prep carefully this time. seems verbal has hit you hard, so work with mgmat sc
guide, aristotle sc grail and powerscore CR
bible. try rc 99 and kaplan
RC work book for reading comprehension.
then work with official guide and quant/verbal review , and gmatprep questions.
What is of supreme importance in war is to attack the enemy's strategy.