Time out Frannie. Your daughter's addiction is not your fault. I repeat, not your fault. You didn't fail her as a mother. She made her choices and that has nothing to do with how you raised her. Nothing. And you do deserve to have friends. You also deserve to have a happy life.
Embarrassed to share her last transgression? I bet if you did, a dozen or so people here could match or beat it with a story about the addict in their lives. We are all walking the same path here Frannie. That's the beauty of this place. You don't have to feel like you're all alone.
Stick around and vent when you need to.
That's what we're here for.
Big hugs,
Gabe