I used to drink a lot, the whole concept of "Giving up" suggested that I would be depriving myself of a pleasure. After applying a little constructive psychology I convinced myself that I was not giving up anything, but simply retrieving a good, healthy lifestyle without being outta my head most of the time. Self-hypnosis is a very good starting point here, to enable the psychological adjustments required.
Now, I can leave alcohol alone, or take an occasional drink. The SLAVERY is long dead and buried.