Self-Injury Support Group
Whether you or someone you know or love struggles with self-injury, this is the community to discuss your experience, find support, meet others going through the same, and get advice on how to stop. Working together, we can help find alternative coping skills to reduce the urge to self-harm.

I think you need to figure out a way to gain control, you might not be able to stop it, but their ways of dealing and coming to terms with what diabetes is doing to your body.
It sounds like you have got friends that are willing to help you.You recovered and didn't self harm for over a decade, that make you strong, find that strength, and stay strong.