If you're drinking at work, it's time to get serious about getting some help. This is no way to live! In fear of what you did/said/acted like etc... if you got away with it this time, believe me, it will reinforce your future decisions about drinking at work, or other completely inappropriate places. As much as you tell yourself "Never again!" or bargain with God..."If you just help me this once God, I'll NEVER do it again", the time will come when you are sitting in the same spot that you are sitting in today, and next time you might not be so lucky.
Maybe it's time to think about giving it all up. The hangovers, embarrassment, shame, withdrawals, missed work, blackouts, not to mention the harm you are causing to your mind and body by drinking alcoholically. I know, it's a lot to give up, but there is a whole new wonderful world waiting for you.
One day at a time.