You truly deserve an award for all this. I remember from childhood that my brother had a sweet friend,a boy that we all loved. Raised by the same parents, his younger sister had drug problems, a constant nightmare. I never heard of a diagnosis, that would have been the sixties but they probably would have taken her for help. We were kids so things might have been hushed up. The point I’m trying to make is that it wasn’t you. You did so much to help her and w yr own challenges were far better able to help her. Mom of the year award goes to you, lady! as Mickey said, do nice things for yrself. Hugs.