Kjell I think you have learned from this and I think you have added a tool to your recovery. Maybe you didn't take working AA seriously enough. I mean when I was in AA years ago I went and got a sponsor, but I didn't delve deeply into it. Had I done that back in my 20s I might not have faced the next 20 years of the same out of control drinking I endured. Recovery comes first and just remember New Years Eve or New Years Day or Martin Luther King Day is just another day. We don't need the calendar to give us a reason.
Get back up on that horse and don't look behind you. Take with you what you learned and keep moving forward. Regret is a demon that can keep you down.