The OP made me cry. I have a related situation with my older daughter, who has broken my heart and is truly poisoning my younger daughter, the love of my life, who has left home to go with the father she hates.
My life has spun out of control at this point. I have no support system, no relatives, and I am physically addicted to oxycodone, prescribed to me for a spinal tumor.
The saddest music in the world.