Your most valuable advice in entire debrief was to have a half pound weed and:
Lie down - close your eyes - try to think of something other than GMAT (whatever it may be, a game, a picnic, an incident at work, something other than GMAT). If you cannot make your mind go away from GMAT, try to recollect some of the things you have written down in your flashcards. Most probably, they will be some basic theories, for example, what is implied by X>0 (it means X may be a positive fraction or a positive integer). This technique helped me the most on the day before the test (this last Thursday !!), when I forced myself not to study anymore and tried to relax.
Congratsss!!! very good debrief!