The first time I got sober I was in my mid thirties. Stayed sober for twenty years, then fell off badly by drinking "a glass" of wine in the afternoon to take the edge off so I wouldn't get into it with youngest kid when she got home from HS. Within six months I was drinking all day, every day.
Got sober again over five years ago at age 59. I don't think I have any more lives left of my original nine... I am going to stay sober for the rest of my life!