Let's say you have a week before the belt test/grading or competition.
What do you do during the week to make sure you are physically ready?
I'd really limit my physical activities so as to not over-work myself or risk a potential injury. I would most likely run thru some of the required material, but I'm not going to overexert myself doing it.
What food do you eat (do you change what you eat or focus on certain types of food/drinks?),
I've heard people mention eating things such as pasta. Overall, I think it would be best to always do your best to maintain a healthy eating style. As for fluids, I'd suggest water and/or power-aid type drinks.
activities you do (# of hours of sleep a night, etc.), and anything else you might do to enhance your preparation?
As for the activities..see my comment above. I'd also do my best to get as much rest as possible. Even if you're not physically sleeping, simply laying down provides your body with some rest.
You're Welcome!:ultracool
Mike