Deep breathing is a must - When I am really stressed or doing something that is highly uncomfortable (aka: Dating), before I even go in to where I
need to be, I sit for a couple minutes in the car, close my eyes, and take several long, breaths in, hold it for a couple, and let it all out slowly.
Not only does it wake you up a little (the breaths give you an extra "boost" of oxygen, and have the additional benefit of cooling you down), but
it's each breath you take will relax you a little more, and help you to focus on your task.
When practicing lucid dreaming, one technique that always helps me is doing a "walkthough" of what I will be attempting. I snap my fingers, and tell
myself "Hey, this is a dream". In your case, go through the list of potential questions early, and at a relaxed pace (rush it, and all the answers
might go out the window on test day).
Finally, it may help if you turn the knowledge you know already into something you will remember.
For example, one question that my parents were not able to answer is: "Who has the right-of-way in a roundabout?". They weren't able to tell me,
because they have never heard of one. This was an open-ended question. How did I remember the answer? While looking over my notes, I wrote in a
scribble referring to the "Circle of Trust", in that those in the circle were the ones that had all the power (it's from the movie
Meet the
Parents).
And to lend you a bit of encouragement - I'm about half your age, but it took 3 tries to get my license. First time, I bombed on all of the parking,
so I never managed to get on the road (darn parallel parking - I've never had to do it yet). Second time I had one point taken off for parking, but
scared the poor guy half to death (I made a leap into traffic that I knew I could pull off; the instructor didn't think so). Final time I made it
with no points on parking, and minimal points on driving. And, if you want some humor, because I was so used to walking, a full semi passed me on a
two-lane road because I was going too slow
-fossilera