I need help!!!

I’m so focused on trying to study for my GMAT that I really don’t have time to write the introspective essays required to get into school. I have to write about a time when I’ve failed and the lesson(s) that I’ve learned. I’ve failed at many things, but I don’t note them. How am I supposed to respond to a question like that? Failure is so negative that when I do fail I immediately take actions to forget it. Graduate School Admissions Essays are like English Essays gone MAD!!! Does anyone know any good websites where I can get feedback or a push in the right direction?