whenever she says "well my friends mom...." or whatever, just tell her to stay on topic.
her friends are irrelevant.
Why does she want to drop out of school?
Is it a place where she doesn't feel comfortable anymore?
No matter what, she's got to stop thinking about herself.
The root of all problems is perspective, and what you think about your problem.
Maybe she needs to understand how lucky she is that she can go to school, and that she does have "friends" (if they are real friends, I don't know), or that her mother cares about her, and that her mother is working hard for her, and that you, yourself, care about her.
A lot of kids don't have any of those things.
A lot of kids don't have anyone who cares about them at all.
And for a lot of kids, no matter how much trouble they cause, or how radical they act, or rules they break, or how hard they push...
they don't get any attention, they don't get any counseling, they don't get a sense of involvement that comes from causing problems- they get nothing, because, for a lot of kids, no matter how much of a commotion they cause, nobody around them cares enough to listen. A lot of kids don't have people who want them to be successful in life. A lot of kids don't have anyone. But is fortunate in that she does.
That child is very lucky, and I don't think she understands that.