I stock up on those things, they're damn expensive! But I just think about how I feel when I drink too many, the fact that it is controlling me, not the other way around and reject that. If you drink eight a day, cut back to seven, then six and so on. You'll get there.
To quote Trent Reznor, "I hurt myself today to see if I still feel."
I don't do "typical" self-harm. When my depression really gets me in it's grips, I be fine myself banging my head against the wall.
When the internal pain gets so bad, the external pain can be a distraction from it.