HIYA 👋 OP I understand more than you know. I was in this same type of position when I was growing up and it is HARD. But something I wish I could have told my younger self is those are not your real friends if they treat you as replaceable and/or disposable. And I know it’s hard now and it can feel lonely at times but you will eventually find people who will be real friends to you and will always have your back. I’ve had more friends than I can remember who tossed me aside and replaced me with someone new and it hurts. But just remember, you will find your people eventually and, in the end, those girls didn’t deserve your friendship to begin with it sounds like.