I am taking one every other day but you have to understand that I have lot of free time right now and I am having a lot of trouble with the games....
I graduate in about 2 weeks and already have all of my work finished for 2/4 classes. I basically only have two finals to study for (one of which will be easy). On top of all this my EARLIEST class is at 1pm.
I may start taking full tests less and working more on games.
But it has definitely been paying off, as my scores have been improving, and I am very comfortable with the test right now ( have taken 9 so far).