Didn't read all the responses so this may have already been said.
As far as I'm concerned the OP is further proof that there is such a thing as alcoholism. And he/she (sorry, I don't remember), doesn't have it. There are people who can drink daily, develop a drinking habit, but then one day realize how it's affecting their lives, and just stop. Or drink normally. And it's not a problem. My wife was like that. She drank and did drugs on a regular basis for years, saw it was getting in the way of things, and stopped. Now if she has 5 drinks a year it's a lot, and I've only seen her drunk (buzzed would be more accurate) about 3 or 4 times in the 15 years we've been together.
Yes, as many have already stated, you're one of the lucky ones. And with the way you say you drank, you're one of the even luckier ones.
Your experience is completely different that most of the people here. If it weren't, we all would have simply stopped drinking the way we did.