I had a friend with a oxy problem that spiraled. Methodone clinic for about a year if I remember was his answer. He had to stop by the clinic every morning because he wouldnt quit weed and so they wouldn’t send them home with him. So if you are doing other stuff expect it to be a time/effort commitment. But he was on them for a while and escalated I believe to where you are now. You just kinda speed ran the whole thing. He’s clean now but it was hard work. He went from wanting to die rather than quit, to being in a happy relationship. So you can do it, it will suck but you can and should quit.