I quit because it was easier than to try to moderate and for the health benefits. I was hoping for mental health benefits but it was not the main reason for quitting. Nothing very dramatic happened, I was functioning and I had no health problems. Work, family life etc intact. But I so hated letting myself down all the time by trying to moderate, then failing, making up some new rules etc. My drinking had slowly increased over the years as well and it was obvious that eventually, I would have to give it up anyway (since moderation clearly wasn't working).