Am I Strong Enough?

The day is getting closer and closer for me to deliver my sermon for Bible School and I feel like my stomach is forming a mosh pit when I think about it. I have delivered the word before but I always feel like they should use someone else. Why use me? Am I strong enough to deliver a message? I know that fear is a spirit that is not given by God. "For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind." So I will tell myself "I can do ALL things through Christ which strengthen me" (Phil. 4:13). So, I will have to take deep breaths and pray I don't pass out. LOL, keep me in prayer.