I think there's still a fair few misconceptions around addiction, I know this because I was an intravaenus addict for most of my adult life. From the age of 21 I was heroin-addicted, interspersed with prescribed methadone. Late 30s I ceased heroin, relying only on my methadone script and it took me ten years to gather the bottle to taper off that. I became completely opiate-free in May this year.
I'm (selfishly) doing this as a sort of marker for me, so I can recognise the steps I've taken, if that makes sense? So curiosity most welcome.