If you have a treadmill or stationary bike one of the things I like to do is read my notebook or even better watch the technique DVD while doing cardio.
I know it might sound odd but focusing on the techniques your about to be tested on while under physical stress has always helped me in the past.
Good luck on the test!
I believe that self-defense is a moral imperative, and that illegitimate force and illegal violence must be met with righteous indignation and superior violence.
But hey, thats just me.