Generally, suicidal people feel like everything is their fault. The best thing to instill *or attempt to instill* in them is to just make them feel wanted. Invite her over for a little while to hang out or something. Let her vent to you *which you probably already do.* Just make her feel welcomed. Growing up in an unstable environment can mess up a persons ability to accept compliments and positive re-enforcement. Just be positive. Maybe tell her YOUR secrets, or talk to someone else about it. An adult or something. It sounds corny, but it really is one of the only things you can do if you realize that she is serious about the suicide. One thing to remember, is that she already feels unstable. Never push her to talk about it. That's a big thing in it. And if you notice any self-mutilation going on, talk to her first, then if she acts like it's nothing, alert an authority figure. A lot of times too, it helps to know what makes the person happy, then remind them of it when you notice depression rolling up inside of them. So the brief version, BE POSITIVE AND DON'T PUSH THINGS. If you want/need any more stuff, just PM me or whatever.