The Demon Drink
Maybe you could try getting a good friend to hold you accountable. Make your limit 1-2 drinks and make sure they know that. If you try and drink anything more than that have them take it away, no matter what. But it mostly is up to you to have enough self control to stop drinking so much. You can do it if you try, don't blame it on impulses or the way you were raised because that's only an excuse. A human being is capable of SO much, including self control. You just need to take some time for yourself and really think about what you want, whether that's to stop drinking all together or to just slow down. If you don't think you're an alcoholic than it should be simple for you to control yourself.
I don't want to sound like a broken record but it really truely comes down to self control and I believe you have that. Don't let the "fun times" get the best of you. Have you ever been around a group of hammered people while sober? It will quickly change your mind. Try being the DD for a night. It's not so fun babysitting, and you'll see how silly you really act while drunk.