Translation of sobresalir

So I cannot eat an entire fish, that looks like a fish and I cannot eat an entire chicken that looks like a chicken. Understand? It is all in the head, as I have told you before. Nothing personal.
Please write me from your home as soon as your are back. My Spanish is better than that of most Americans, but my English is worse than that of most people here. It is a strange position that I am in.
In order to get to this hidden lake one would have to row beneath a cave. On the other side of the cave the five of us were alone. The lake was surrounded by limestone mountains covered with tropical trees.