Countdown to the exams!

In less than a week I will be taking my first two exams in graduate school.  Although there are numerous sample exams in our library, I still can't help but be scared of the unknown.  What would the exam cover?  What if it's the topic I forgot to review?  What if they grade exams differently here in Singapore?  How many more cups of Starbucks can I afford? Yes, Indocafe just doesn't do it!  Besides, my friend's sister passed the medical board exam in one try because she reviewed in a nearby Starbucks.  I am still convinced it is the magnificent brew that helped her :P.  Oh well, I guess one can only study, pray, and gulp coffee as much...