There was a really elderly gentleman that my dad (now deceased) used to drink with in his local bar, I got to see him and shake his hand now and again when we'd both go out at the weekend for a drink.
This gentleman used to not come to the bar during lent, I remember asking my dad where he was one day, and he replied "oh he observes lent" . . . I remember joking with my dad "you could do that too" to which he just laughed.
In hindsight that was the difference between a normal and problem drinker, it never even entered my dad's head that it was even an option, this other gentleman could turn the switch without a problem, and for me I would have had to try really hard if I was to achieve not drinking back then during lent, that was a clear sign that I wasn't a normal drinker for me to go even 1 day without drinking.
Having already become Sober, I can't do anything different, so "going on" something might be my best way forward!!