Hi,
when I was addicted to cocain THE only way I was able to stop was by removing myself from the accessibility to it. It was not just a matter of willpower. I had to move, and completely give up those friends I used to party with. Sounds extreme, but this was after about 100 attempts of trying to quit. Cutting the access was the key factor for me. I am glad I got out when I did because i later learned that a few of the guys I used to hang with went on to snorting herion, and ended up on the streets then in rehabs several times.
Once you get free of it and let some time go by, trust me you won't miss it. If someone gave me a line right now I would flush it in the toilet. I can't believe I used to need that stuff. You'll get to that point to
If you can remove the accessability, that might help you as it helped me. Even if it is not as extreme as moving, but perhaps disassociating yourself from the places and people that involved using.
Best wishes,
Thomas