Medical Scholars Program

Hi, so I’m applying to the Washu medical scholars program. One of their questions is to write an essay on why you want to be a doctor. The thing is, my common app essay is exactly that. It covers and explains everything that led to me wanting to be a doctor since I answered prompt 1 on the common app. What do I do?? I can’t write a new essay without it sounding repetitive of my previous essay