So my school has a daily morning assembly where where someone presents something for the school every morning. It can be a poem, a song, a funny story, a dance routine, a talk about something they care about, anything you want. So after thinking for a long time, and after having thrown away the idea of having a talk about SA, I decided to have a presentation about self-injury. It was a simple deal, no PowerPoint or fancy video clips, just me standing there reading from handwritten notes in a notebook. First I mentioned that I had been really depressed and struggled with SI myself, and then I went on to talk about statistics, different reasons people have for hurting themselves, how to support someone who struggles with SI, etc.
It was a pretty powerful experience, not just the feeling of standing there talking about something that serious, but the way the pupils reacted. People were actually wiping tears from their eyes throughout the whole presentation, and I could tell afterwards too that it had affected many of them pretty heavily emotionally. Not everyone at the school has been too mature about various subjects, and I feel that holding this presentation might make people think twice about SI, at least