Graham,

I'm sorry to hear about your daughter's struggles. I do hope that balance will return to her life soon. Having raised a daughter and a son thru those years, I can understand your anguish.
Do not however change your dress, your strength of character will be a source of strength for your family. And I know that I don't have to remind you that poor decisions made by loved ones are not your decisions. They own them. I wish you strength.

David