Peachface,
Flight screening does involve a lot of study. The best way to fail is to treat it like a holiday. Your comment of "why keep me for two weeks when you only perform 10 hours flying?" has me a tad concerned.
The flying you do is not teaching you to fly, it is assessing your aptitude and learning rate for military flying. To enable you to pass there is a lot of info that they expect you to know, which they provide you with on day 1. If you don't know it, you won't pass. Simple.
Trust me, the two weeks will go very quickly when you study, fly, study, fly, study, etc. Oh and eat and sleep.
Even if you are already an aerobatic wizz, they will show you plenty of things you have never seen before. Add to that the fact that you fly two aircraft in those two weeks and i am sure you will not have that much spare time on your hands.
Cheers.