I REALLY NEED HELP ON MY PSAT/NMSQT!!!and help with the studing!!!and i need it right now!!?

The day after tommorow (wendsday) i have my PSAT.i wanna past and i'm reading the book right now and everything but i'm not getting it.i need some tips for good brain food and stuff to wake me up while i study.such as what kind of music and things like that!!!the right foods and the right drinks is what i need.and remember i need to know this stuff for right now while i study.extra things for the day of the test is appreciated!!!!thanks! <(^_^)>