It’s shitty but until he will help himself you cant help him. He has to see his problem and want to change. There is nothing that can be done for him until then. But y oh can sure as shit do something for yourself. Limit access to yourself and kids. No access when he is on drugs. At All. D not en Anable him
Alanon had a great online video. Google “alanon family drug addicts online”
This was very helpful for our family.