Ask her, if she doesn't like to talk, whether she'd be more comfortable writing things down? Maybe buy a journal or note book, write this message in it with whatever you want to say to her, and ask her that she write a response, and give it back to you. You can try that, trading off turns, ask her if there's anything she'd like to ask/tell you ...

Reinforce that if you didn't love her, you wouldn't care. But you do, so you do care, and want to help her.

Reinforce that you will always love her, that will not change, and you will always be part of her life. BUT that she needs to learn her actions have consequences, and you are not going to be a doormat. There's a difference.

Is there anywhere she could do community service this summer, maybe working with either disadvantaged children or the elderly? Something that would a - help her school transcript for later, count toward graduation if her school has a CS credit, and might lend some perspective to her existence, help her see beyond the end of her own nose?

Even if she doesn't know it now, you are being a better parent to her than the two responsible for her birth. She may already know that in her heart, if she doesn;t, she will some day.