gosh you really have had a tough time and i dont know where to start.
I cant begin to imagine what its like to have the aded complication of grandchildren involved.
I feel i say this to evryone but only because but has helped me when things were at there worst, but have you accessed any counselling for yourself? through either a local drug and alcohol service which is how i got mine…had i think 10 sessions free and then also through any of the national services such as drugfam or somewhere.
There are also support groups mainly on zoom now which can help enormously with supporting and offering advice with what you are going through.
sadly at this point its about damage limitation to your own health as ive learnt that they will only seek help when they are ready.
other than that just try to focus on yourself and your grandchildren dont allow your daughters addiction to completley ruin your life….so easy to say and even with my son 90 days clean. live with the fear of a relapse hanging over me.