*Help!!* My stomach is churning? How can I relax? Please *Help!!!*?

I've been campaigning for president and elections are tomorrow while everyone is in homeroom. I have to say I did pretty good with my campaigning, I just feel so nervous for tomorrow morning because I feel I'm going to lose even though, people have been shouting my name, wearing my campaign color all week long, and telling me they're going to vote for me. Now i feel I'm going to throw up at any moment. Please help me, how can I relax?