You know, Buffy, it just occurred to me that when I used to bang my head my husband (who is normally very loving and supportive) would calmly tell me to stop or he would leave the house. I knew he meant it.

That's how I stopped. Just came back to me. And if, God forbid, he wasn't here with me, I could still see him saying that to me in his calm, loving way and I'd probably stop. ((((((HUGS))))))