I was visiting you guys in the week before easter course, we trained together a couple times, too.
I'm sure you're going to be fine.
Resting the day before is probably a good idea. As for the nerves just before testing, see if you can just allow the panic to be there, breathe into it and turn it around into great positive energy to use in the grading.
I'll keep my fingers crossed on Tuesday, not that you need it, and let us know how it went! Say to hi to everyone from me.