As the sage Jay Z puts it, gotta learn to live with regrets.
I found the sober app on my phone, which counts days but also keeps an estimate tally of money saved, to be motivation, especially in early sobriety. Drinking takes and takes and takes. For some people it's a fun, social activity. For many others it's a black hole of absolute devastation and suffering.
I think coming to terms with this is important but even more important is not letting the regret and shame and financial/spiritual/physical toll prevent you from putting it down for good. I know that for years I would use the whole "well I f'ed up so much there's no use in quitting" excuse to keep boozing - be wary of falling into that trap.