I had a strange realization around 5 years ago that I hadn't had so much as a beer in longer than I could remember. I never set a goal or made a decision to cut alchohol out of my life, it just sort of happened.
If I want to have a drink, I have no reason not too. I've even sort of had plans to share a beer or a drink with friends and then just drank soda or water, lol. Oddly enough, I just realized that the last drink I had was last New Years Eve night when I had one CC and water and a half glass of champagne.
So it looks like I just went 365 days without a drink and didn't even realize I was doing it. It can be done.