Sometimes we hold on to things that remind us of good memories. Other things may remind us of bad memories, however. The Sunday Night Blog suggests you let go of the bad ones and fill the spaces of your mind with new and better memories: https://rjptalk.wordpress.com/2012/12/02/let-go-of-toxic-memories/ Of course, this is not always easy, but absolutely worth the time to do it. You will feel better in the end. It is also suggested you avoid those holiday parties that are sure to create more bad memories. Make your excuses and stay away.