The Show No Go.

My teacher has this sudden want of putting together a show, like how most studios do. For one, to create interest in her studio and two cause its what cool studios do. Only, one problem..... Most studios have at least 20+ students within some level of each other or at least a handful of each kind of level. My teacher has like 6 students. I'm the only level 2 and everyone else is like Level 4 and up {basically surpassing my teacher}. I naturally stick out like a sore thumb which leads to...... The main problem: I, for one, do not want to be in the show. I don't "perform" in class, not even freestyle. I'm not comfortable enough to even think of showing anyone outside that room. Heck it took her 3 months to convince me to let her take a single photo of me. lol. But she is really excited about it and I feel guilty to tell her that I'm not ready for such endeavors. I want to help though, backstage sort of things. So... How do i tell her?? Without crushing her excitement. I know she would never make me look bad and is overworking herself on trying to find our strengths and use them. I'm just not ready. I rather her not waste energy on me when I'm not even remotely interested and down right petrified of the mere thought of it. :(