overcoming obstacles

Climbing up a short hill, only as tall as my shoulder though extremely steep. The two others with me reach the top easily and wait for me there. They are puzzled by how difficult I find it. As I climb, the ground turns to wet, slimy mud and my feet and hands slide back down with every attempt. The hill becomes even steeper, until it is at right angles to the ground. My legs feel weak and powerless, unable to carry me to the top, yet I am determined to make it. I find plastic mesh buried in the muddy hill wall and cling to it, pulling myself up. I have to throw my right leg forward, then my left leg, moving them manually, one after the other. I pull myself up the hill - the others still waiting - and finally reach the top.