I quit alone.
I was sick and tired of being sick and tired, as others have noted. And I knew that while I had dodged serious consequences, that wouldn't last forever. And I wanted a chance at a healthy life.
After two months, I realized what a serious hold addiction had on me and I was teetering. Fortunately, I remembered "that web site" that I had visited a few months earlier. This time, I joined.
SR provided the support and tools I needed to continue living in the solution. Next month, it'll be four years. I'm grateful beyond words.