Hey!! Okay, I can relate on a spiritual level.
Righto. So, try and talk to her as much as you can. Say hi in the hallways etc as often as you can, so she knows that you're interested in more contact with her. Maybe when you're feeling confident enough just go up to her and say something along the lines of 'Hey! So there's this really cool horror movie that's just come out/I want to watch, I thought maybe you could come over and we could watch it together?' Except that sounds a bit dorky. But something like that!! If you reach out and put yourself out there, she's likely to grab ahold, if you get what I mean. Making relationships is all about putting yourself out there, open to being rejected entirely. Which I know, trust me I know, is so hard sometimes. Possibly before inviting her over to your house, cos some people see that as pretty ~intimate~ for a friendship that's only starting out, invite her out for a pizza or a coffee (IDK WHAT PEOPLE DO AFTER SCHOOL OK) after school and get to know her better. But generally just like, if you see her then say hi. She'll get the message that you want to be her friend and respond. Ask for her number if you don't have it? It's going to take a bit of time, it'll be gradual, but I'm sure it'd work if you're slow and steady with it!!! Good luck!!