I don't go a bundle on New Year's eve celebrations, or New Year resolutions either - although I can see that it is definitely a spur to action for many. 'Turning over a new leaf' is always attractive.
Yet there is definitely a 'clearing away to starting anew' feeling after Christmas. For me, this comes once all the Christmas decorations have been carefully packed away until next year, and the house cleaned.
I don't usually do this before January 6th, frequently leaving it until later.
This year, I only started on January 12th. After Jonny and Cat had left to return to university.
We were having too much fun to think about tidying up before that.