Bender, my heart aches when I read your story as I see so much of myself in it. You shared that you were in recovery and attending meetings and were doing well for a time. Well, what says you can't go back to that?!
You've only been at your job for a month and you have already set the expectation with your co-works that weekly drinking binges are your thing. Are you willing to change that?
What is your game plan for getting back on track? You are solely responsible for your sobriety.