I know what addiction is, of course I’m aware that there’s a biological component. I quit smoking, I have many friends who quit drinking or doing drugs. It was incredibly hard, but I did it. Some of them did it.

I met a young guy while I was backpacking last year who was quitting heroin cold turkey. He was back packing to quit - he’d simply chosen to walk out of his home and go without heroin for thousands of km from the trail system by his home in France.

He was a nice guy - I wonder what became of him, but still, he chose to simply stop. I think you have a lot more agency than you think. Yeah, things cannot be undone, but you can definitely will yourself to change a great many things. It’s just hard and our body resists doing hard things.