Hey LG! The reality of all that I neglected to get drunk weighs heavily on me as well. In my case I've been overcompensating in an attempt to "catch up". Of course I can never get back all of the lost moments, opportunities, and memories that drinking took from me, but the awareness of all that I wasted to get wasted definitely motivates me to push myself to go the extra mile these days.
Another thing I've noticed is that the further away I get from my past drinking life the clearer the depths of how bad I actually was becomes, which in turn stirs up a strange new feeling in me. It's similar to what it might feel like to literally dodge a bullet, or to have successfully walked a tightrope across two tall buildings. I find myself thinking things like "I can't believe my husband didn't leave me, he must've been SO close..." or wondering how my kids put up with me, how my liver survived with so much booze, etc etc. They're not necessarily good feelings but they definitely strengthen the disgust I now feel at even the thought of ever getting drunk again.