I need serious prayer!! (Christian prayer only)

So I have this friend I had known for the entire school year. We became very close and soon enough she called me her best friend. I was so happy hanging out with her and my mom was too. We went on a weekend retreat and she didn’t act that nice. She talked about me and my other friend and said I act as if I’m stuck up. And when the adults confronted her about it she lied and said that I actually was talking about her. That hurt me a lot. Not because her opinion mattered a LOT but I have a really long history with girls who gossip and spread rumors about me, and molestation so I couldn’t handle her saying that. I never talked about her in any way and I always defend her. It’s sucks because I had just to feel happy, confident, and worthy but she took that away from me.

Genuine prayer would help soooo much. I don’t want people to say “I’ll pray for you and the completely forget about me. So please pray for me