Just saw this thread and figured I'd share my little journey. I didn't do a New Year's resolution, I quit drinking the first week of December. Don't know exactly the day, but perhaps the 4th or 5th.
I'm 48 and didn't drink at all until 40, and no more than once a month until 42, but over the last 6 years I went from once a month to every day drinking about half a bottle of vodka (or the equivalent, like 10 "beers". I never felt addicted, and I told my wife as such, but obviously that much alcohol caused a bunch of issues, both physical and mental. Just got more lazy, fat, swollen. Plus it costs money.
When I quit, I didn't make a big deal about it, in fact I didn't say a word about it. I knew my wife would think I was just talking like I always seemed to do. But I poured that last bit of vodka in the glass, a splash of cranberry, threw the bottle in the recycle and thought "this is it, time for the next phase."
About a week later my wife straight out asked "why aren't you drinking?", because my evenings were that easy to predict. I said "I'm done drinking", and I think she could tell this was different because I hadn't been drinking long enough that she noticed, so it was already a different situation than usual. Normally I would say "yea I need to quit" or "I'm going to quit" but never "I quit."
That's not to say it was no issue, about 3 or 4 days after I quit, my wife and I had a big fight. I didn't put it all together at the time, but I think I must have been going through a bit of a withdrawal as I felt very negative and lashed out at everything. Then after that fight, with in a day or two, like a fog lifted and I didn't feel negative any more.
And now it's been somewhere around 35 days, I have had not a single issue with alcohol since. I don't think about it, I don't crave it. My wife drinks wine every night and I have no desire.
Down 7 pounds, my face looks much better as the "alcohol swell" is gone. Been working in my shop until 8 or 9 pm (normally I'd be in front of computer all day).
My brother is a year younger and he is severe alcolholic and has been for 25 years. He quite figuratively has one foot in the grave and all attempts at help have failed, and we are cut out, not that I would subject myself to his non-sense anyway.
I see what it can do and has done, and I'm glad to be on the other side again.