Good luck. I had a friend who cut herself badly, but didn't want to miss a choir preformance (Don't ask me why) so while in choir, she fainted from lack of blood.
Luckily, people caught her, and it added a bit of life to the performance.
So maybe...if you do happen to faint...it'll end up as a good thing?
...
I'm horrible at cheering people up. Sorry!
You will be fine. ^-^