MASI,
I reckon one of the most important things to do throughout the recruit, pilots course process is to stay positive and never give up. Even when you're having a shocker in the seat.
It makes a difference to the perception that the instructors/testers are going to have of your conviction.
Plus if you don't end up at fast jets you can join the rest of us hauling trash around the planet. There are lots of ways to have fun in this mans Air Force.