WeekendWaster - I think it's great that you see what needs to be done here. At 30 I would never have taken a cold, hard look at my drinking habits. It was out of the question for me to quit back then. All I needed to do was 'manage' it better.
That way of thinking almost cost me my life. As the years went on, my tolerance grew. In my 50's I consumed huge amounts of alcohol every day. It was destroying me.
This won't happen to you. "It cannot possibly end well for me if I carry on down this road." Very wise of you, WW.