Translation of Rosenkohl

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.
Moreover, even if we know a lot about a certain culture, we will never be able to understand it in the same way and with the same depth as they do, since we have a very different point of view.
I made plans to visit a surfing contest with a girl that I have met on the first day. We agreed to meet at ten in the morning at her place. I couldn't keep my eyes open and decided to quit.