Definition: to choose something, or aim to achieve it.
(This phrasal verb has more than one meaning)

E.g.1. You could see the pain on his face, but he still went for the gold medal.
E.g.2. A: I don’t know whether I should travel for a year before going to university.
B: I think you should go for it. You know what they say; travel broadens the mind!
This phrasal verb can’t be separated.