J.R.
What always helped me was if I was doing something for my daughter while she was at her father's. When she was gone for Thanksgiving, I did Christmas shopping and wrapping. When she was gone for Christmas, I would paint her bedroom or clean the playroom or make cookies. I remember some as more lonely than others but it does get easier if you can get into a routine so that you have something planned to do. I am so sorry you are going through this, the holidays are very hard.