I have a big exam in 12 days - 4 subjects, 3 hrs each, held in 2 days. How to prepare for success in 12 days?

There are lot of materials to be read and reviewed for each subject. If I fail this exam I have to leave this study program. Each subject has minimum of 1000 pages of reading materials plus some questions to workout. I am feeling sleepy all the time due to some medicine I'm taking too. So what is the most efficient way of preparing for this exam in 12 days? Please help me with some new ideas.
Answers:
Well just make sure not too tire yourself out. There will be much involved in your cramming.just make sure that you energize yourself and study the information that is most important. You must pick those things that the teacher used and discussed the most. Most likely these things are going to be the most previlant on the test. hopefully that helped?? Good luck
You could start by getting off the computer and studying!
good luck man.. thats all i can say..hehe
Stop procrastinating, get off of Yahoo Answers, suck it up and start working.
Get good sleep, have a nice breakfast, study hard, and sneak some chocolates with you (chocolate really is good brain food).
Read. Now. Make outlines of all of it as you're going. Study for each one in the order you have to take it, so you might be able to have a little extra time for the next one. Don't try to pull all-nighters. All they do is make you so dopey you won't be able to remember what you've studied. When you get the test, take a deep breath. Look at all the questions, and answer the ones that are the most familiar first. After that, think hard and go over your outline mentally, and answer what you can. BS is not really an option--my ex didn't study for the bar exam, tried to BS his way through it, and failed 5 times! Good Luck!