|Jacky, I am sure, if this a true story, that what happened on the face of the rock wall was somewhat traumatic. I am not sure of the "contest" parameters for length, however, I believe you left your emotions out of the story. I would like to suggest a modification which help the reader "feel" what you felt as you climbed.
Have a dialogue with yourself.And, set it up:
My daughter-in-law is in to rock climbing; she talks about feeling inspired each time she completes a climb. I am shaky standing on my kitchen step stool. But, I realized I wanted to be more to her than a babysitter for the grand kids.
Before I knew it, I had agreed to try it. After all I had been a cheerleader in High School. I could tumble with the best of them
Well, the day came and I followed her to the wall. The kids had stayed back with their grandfather. As we got to the base of the wall I wasn't sure that I belonged there. But, a promise is a promise and my daughter-in-law was so confident and reassuring, that before I knew it, I was fifteen feet up the face of the wall, without a net. There wasn't a sound; I was alone clinging to the face of a sheer wall, asking myself how I got there and then, I looked down......
Get the picture? Good start, I believe you have much more to share with this work.