Should I write about this?

Hi all,
I don’t have much to write about concerning my personal essay on Common App. Either than my brother’s illness (which I feel is more exploitative towards my brother and his journey rather than a “look-at-how-I’ve-grown” essay), I feel as if I have no concrete ideas as to what I want to write about. Here are some things I have been considering:
-I am a volunteer Disney Princess for a company. We dress as princesses, heroes/heroines, etc. and volunteer our time towards entertaining children with illnesses/going to local children’s hospitals/raising money/participating in charity walks for a cause. It is definitely something that those in admissions would not see often and I believe that it could make me stand out!
-I’ve co-directed a local children’s theater camp in the summer for three years now and am currently directing a student-ran one-act at school with student acts. I am heavily involved with theater; hopefully writing about something I love and using that passion to enable others to discover theirs or fuel their love for theater will exemplify my commitment towards an activity, my interest, etc.
Thank you so much for reading. Good luck to the class of '17! <3

I like the Disney princess one. : )