Please Help....Solo Ensamble is tomorrow?

I have solo ensamble tomorrow and im in 7 events, which im singing 9 songs in. I have 2 solo's, 3 Big Groups, 1 duet, and 1 trio....Yes i know stressful but still having fun....I have a question though...I am wondering what i should eat tonight before i go to bed and when i wake up tomorrow...I heard that drinking Caffiene Free Herbal Licoricie Tea is good for you so i have those on handy....I have lemon/honey cough drops that are sugar free....but what can i eat....