is it sufficient time to get a rank in ipcc?

i have my ipcc attempt in may 2011..nearly just 2 months are left...though i am an average student and i am craving for success..i want to get a rank in ipcc..no matter what

i just want to ask u guys..
is 1 month revision enough to get a rank?
 if i complete my course till 31st march then i wll get april for revision

is it sufficient? or to get a rank more tym is to be devoted to revise ?

i will spend 10-11 hours everyday?
pls tell me