Dumb Toyota Center Question

I’m going to see my chemical romance at the Toyota center at the end of the month, I have general admission tickets and I’m super excited, and I’m trying to sort of plan out my day. I was just wondering kind of How big is the general admission area? Like should I plan on camping out all day to get a decent spot? Or is it a little smaller than that? I know this is kind of a dumb question but any insight would be great