it will be ok Zen... take some calm breaths and relax.. think about how good it will go.. even if it doesnt go well, the breathing and imagery will calm you in advance and who knows, it might go better than it would have if you didnt..

we all get nervous about big events and its ok that you are having some nervous excitement... some of it is because you have a great concern to do well and thats a plus in any religion

but have faith that all things work out exactly as they should and we all are learning and growing.. those who seem so confident to you always really arent, but theyve learned to calm themselves and with practice they can rely on certain levels of performance from themselves.. its a place you will get to also take care always..