friend,
one thing I would tell you now is to relax.
go jogging, swimming or just junk food.
or a movie.. you need to lower your stress level.
and then, go thru your work, assignments, what you done?
try to redo some of the problems. if unsure look @ the answers bit
by bit.
build your confidence.
and if you got time, like in the toilet, just flip thru your text
book, looking at the diagrams and pictures. just look.
and once you don't feel so stressed. try to look harder at those
diagrams and pictures. and read about them.
and then re-do your assignments without looking @ the
answers.
if you do well, great. take a cold drink. relax.
and then go for exams.