You might get more response if you posted this on the Memory Optimizer forum.
Also you might need to clear up what kind of advise you're looking for. People can offer all kinds of advise like tie your shoe laces so you won't trip.
One piece of advise though is check the Memory Optimizer manual for preparing for exams. There are a few tips in there that will help. Even things like chewing while taking the exam will help because the act of chewing brings oxygen to the brain.
Stay hydrated. Tht is make sure you have enough to drink (water is best) A little bit of coffee or caffine in your drink just befor the exam can be good. Don't overdo it though it also affect ones need to relieve themselves the last thing you want is to need to make a fluid adjustment within the first 15 minutes of the exam.
Alex
