[Jessica.]

I have been in the situation where I have been confided in about stuff like this too and tbh it was tough, I completely give no sympathy to self harming any more, she needs to speak to a professional as soon as possible, it's not your job to solve her problems and she will NEVER stop unless she wants to, so don't blame yourself whatever happens. Be supportive about everything else though obviously, I may not have a popular opinion but I am just speaking from experience, the most important thing is seeking PROFESSIONAL help. :|