In my experience it meant doing whatever it took to stay sober, and I had to try many different things until finding out what worked for ME. I had to distance myself from some friends and family that are still drinkers, and as a result my social life looks quite different. I had to engage in healthy activities and give up some not-so healthy ones, even ones that didn't directly involve drinking, i.e. less time on electronics, more time on actual LIFE. I had to get 100% honest with myself and others about ALL aspects of my life, and not default to prior secretive behaviours, lying when feeling like I was backed into a corner, etc.
I've been sober just over a year but I'm still feeling the effects of 25 years of active alcoholism (my entire adult life). I'm not a well-adjusted person. I have lots of ongoing work to do.