Why did I drink like I did? Because I am an alcoholic. Why am I an alcoholic? Who cares? It wouldn't have made the slightest positive impact on my chances of recovery.
Maybe I could have found someone to blame. That would be just one more resentment to add to the list. Perhaps my mother dropped me on my head. I doubt that knowledge would have got me sober. The fact is that I am an alcoholic of a certain type and if I want to get over it, all I have to do is follow a certain solution.
I may have issues in my life and I can use professional services if need be. But there has never been a case where alcoholism of my type has been caused by external factors. Alcohol comes in bottles, alcoholism comes in people.