Fisheries? Ah! I don't understand 🤔 I think you should've been given a chance to choose, if your score is not okay for nursing...

Well, just like you've said, parents would always have this one profession they would love their children to venture in as they grow. They would try to talk you into and sometimes beat your desired profession with theirs.
Hopefully next year you would get admitted into the nursing school of your choice, if you prepare better than the last exam you took.