Oh sweetie, I’m sorry, that’s such a hard thing to deal with. My youngest was 13 when her school rang to tell me she SH. I was devastated particularly when I found out it was partly due to the fall I had that left me disabled - she’d struggled with the way that changed our lives. It took a long time to figure out that it wasn’t my fault. The best thing I could do to help her was get her any necessary medical support and make sure she knew I loved her and I wasn’t angry she felt this way. You’re not a failure, lovely, and the fact she knew she could talk to you about this is a huge thing.