Welcome TTC
Actually, clean opiates, once off them and through the w/d don't leave permanent damage. At least I know that is true for plain morphine, oxycodone because it is synthetic I don't know... that is just the body. The emotional, mental aspects can take longer, but I found after 10 years of addiction to morphine, once I was off I felt completely normal after about 6 months... Functional after 1 month. The first 2 weeks off I was very messed up.