I'm glad she had the confidence in you to tell you that. It must be hard and scary for you to hear, and it's very positive you see how your attitude towards it will affect her.

I've never had to deal with anything of this issue, so I don't exactly know what it is you can do that would help her, but it runs along the general lines of letting her know that she can talk to you at any time about these matters and that you will not be angry, to let her know you'll be there for her. She probably knows that anyway but there is no harm in repeating it. Maybe you could ask her what gave her the idea of using a butter knife rather than, say, hitting a wall or something. It might have been suggested by somebody at her school, and in that case maybe you could bring to her attention alternative ways of releasing anger.

Maybe the cutting attempt at school was a one-off, but with the taunting there she might do it again, more successfully, so then you should look out for her covering up her arms or other parts of her body and being more secretive than usual.

I'm glad you're there for her and reacting in such a calm fashion, it will help her and will give her further confidence in confiding in you as she gets older, too.

((((((((((((( mel ))))))))))))))