I used to be a VERY heavy drinker - good at beer games, could have 18+ shots in one night, blackouts were a semi regular occurance.

For me, I just got it out of my system. Sometime after my 24th birthday, I just no longer felt the need to get absolutely sloshed.

Had a lot of good memories, at least the ones I remember... and I don't regret that phase of my life. And, that phase of my life is over. Now I have "a beer" maybe once every two months. Total lightweight. And, it still feels good to release that way from time to time.