Maybe you would like sports if you gave it a try. I’m a big sports fan but neither of my kids really are. One is at a D1 school and she goes to the games (sometimes) because that’s what everyone does. She knows nothing about it but puts on her school t-shirt and yells and when she’s tired of it goes home. The other daughter has picked up watching the NFL because her boyfriend likes it.
You had to like other things about the school when you picked it. It wasn’t like they hid that big football stadium when you were touring, so what else did you like about it? Go do that.
Are ‘all your friends’ going to the local college? If they are, you wouldn’t be in the same classes or bumping into each other all the time anyway. If they aren’t going to school, they’ll be working. You can’t keep high school going, you have to move on.