Help installing winch on 2000 sportsman

Ok so I got a winch for Christmas and now I’m trying to figure out how to install it on a 2000 Polaris sportsman 500. I’m pretty much clueless about how to do this. All I see on the front that I might be able to mount to is the plastic bumper that’s screwed to the frame. I’m just trying to use the mounting plate that came with it. Am I doing something wrong? I have no clue so any help would be appreciated!