That's brilliant. I'm just over two years sober and it really does get easier. Once, as @really_whythough says, you've ticked off those milestones (first birthday, first holiday, first Christmas, etc) then it does just become routine.22 weeks - no alcohol. Been through some testing times, plus holidays. Still not tempted by alcohol.
I think now I'm at the point where one of the things keeping me sober is the explaining I'd have to do if I started drinking again, and, being basically lazy, I can't be arsed.