No worries, part of me getting better is trying to help others though its limited because of the pandemic and often I repeat my advice, I do believe it to be true though!
People end up in active addiction for many reasons. Some people even have very good upbringing in wealthy homes but still end up in trouble. The best thing to do for now is focus on what you can do right now, today and take it a day at a time. He clearly has alot of stuff going on so just take it easy, baby steps and he will get there if he does the right things.
I promise it’s possible to recover. I have seen it
I do know one thing is that I am yet to see a real full blown addict get better without some type of support. He’s lucky to have you looking out for him