An interesting piece here, Reece. Asking valuable questions, as well as valuable self reflection. You truly shine in this realm.
I would never had guessed the 'little one' is as old as she obviously is. I had alway pictured her more like 10 - 12. You have done a fine job of protecting her identity. Kudos to you. She is also a beauty, like her mother. You are a lucky man.
As an aside, I have been estranged from my two children for the past nine years. My son is now 27, and my daughter is 24. A long, sad and painful story. Life somehow, goes on.
While I was studying photography at the U of Oregon, I worked as a psych tech for a year on an acute care psych unit. Then two years on an adolescent substance abuse unit. I have a good idea of what Daisy is going through. It is not an easy road, in any way, shape, or form. I applaud her efforts, and her progress.
I also applaud you, and your family, for sticking with this process. Again, it is not an easy road. It will also demand that you and Salome make some changes as well. I wish you all the best in grappling with these changes.
Sending love and support your way, my friend. As the old saying goes, 'a day at a time'. There are no short-cuts.