That's tough, Atlas. I ran into a similar situation about a year ago when I first had serious suspicions I was an alcoholic. One of my best friends going waaaay back (to second grade, in fact) told me this whole "alcoholism" thing was a pile of crock and that I shouldn't trust my own judgment. He kept offering me drinks throughout the night, over and over again, every hour, and finally just said smugly that I'd be back to drinking in a couple of days.
Just remember that you know yourself better than anyone and that quitting drinking can hardly be a mistake--look at how good sobriety feels! As Art mentioned, let's keep at it. As long as we're sober, it can only get better from here.