Hi Harden. I do think the why matters somewhat. Especially for some of us that started drinking & doping very young due to trauma & that sort of thing. But...for me personally, I needed to suspend the why questions for awhile & just get to the doing of living sober, one day at a time. Then as I became solidly sober I had lots of flashes back and introspection a that have helped me to see what I had been doing (originally), before the booze actually became a physical and mental necessity to get through the day . Hard to explain I guess but I'm sure you can see what I mean.
Congratulations on your sobriety. It is such a good thing isn't it?