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 can understand what you mean - the fact that it's similar to comforting sensations is naturally going to convince you to believe it's not hurting yourself, but I guess once we've got used to hurting ourselves, it does feel comforting. It's crazy how our minds turn around once we get used to it.
I'd say do your best to stop the tongue-biting, although I appreciate it's not easy!
And don't feel you've failed. You haven't, not at all. Just keep fighting, you'll make it :)
i'm here if you ever need to talk.