Yes my friend, you are me 70 days ago!
I too had long sober stretches, and was happy to enjoy a drink on special occasions. Over the course of a year or so, the special occasions turned into Thursday/Friday/Saturday/Sunday whether there was an event or not (Friday night movie on the couch counts as an event right?!)
Anyway, again decided the returns on the first buzz of booze were no longer worth it. My fitness goals remained out of reach, but in touching distance, I regretted drinking (even one drink) the next day and it messed with my emotional resilience.
So I jacked it in 70 days ago and have been flying high ever since. Highly recommend joining the Reddit stop drinking forum if you need daily/immediate support, or just friendlies to chat to.
It's funny because I'd go through months of easy sobriety but never with the view to make it permanent. This time though, it feels like my brain has said "enough" - also highly recommend any sober life/Quit lit books. Eye opening, funny, honest and supportive reads.
In the last 70 days Ive celebrated wedding anniversary, danced through carnival, navigated an airport and girls weekend away, birthdays, and Friday night I danced until 2am and then drove everyone home. All sober, all brilliant events. And not once did I crave a drink.
There are so many non-alc options out there too now, so you won't ever feel you're missing out!
Good luck and well done!