I don’t think this will help but I can tell you of my experience.
Friday September 13th would have been my 16th anniversary, it hit me like a train about 3 days before, It caught me quite un awares. Anyway I found a quiet place and bawled my eyes out (not good to see a grown man cry) but I got it out of my system.
On the actual day I was distracted as I was expecting the decree nisi (notification to end marriage) to be issued, so Start marriage on the 13th end on the 13th .
However the notification never arrived so I just got on with the day as normal as I could under the circumstances. Sorry I have no magic answer but I do hope you make it through the day.
