She should be sent to a doctor, and or hospital, to get evaluated. Is she trying to get attention, or seriously thinking about killing herself. I have an adult sister, who played poor me, as kids, and last year, she did something cruel, and shortly after I had a heart attack. because I was exhausted and still mad at her, I would not talk to her, she told my other sisters because I wont talk to her, she was thinking on killing herself. I still have not talked to her in 6mos. And she is still alive.

Tell her not to say those kind of things and that suicide threats are not to be taken lightly. I doubt at her age that she really understands why people worry about when she says those kind of things.

If she really is depressed, she should see a counselor.

Try to help her out. If it´s getting out your hands, talk to her parents or someone who is capable of stopping her.

You need to get her counseling. People who are depressed are often good at hiding it

ok and?