My Test and assignments week

This following week i gonna have 4 tests and 2 assignments to handle. It's very tough to pass thru this week...
yesterday i study for my programming test, but seem the book is a lullaby for it. It make me fall asleep when reading it. How could i deal with it?? Dai dai lou said just deal one by one... for me, say easy but it's really difficult to do so...
This week will be my sleepless and fatigue week. I hope that i can cope with it and really understand what i study for my test. I want study it instead of read through it...