The start of a new year is a good time to ensure that you are doing everything you can in your parenting arrangement to help your children thrive. There are many things that you might be able to tweak that can make the situation better for your kids. It is imperative that you make efforts to make improvements that you can carry into 2019.
One of the best things that you can do in this situation is to renew your commitment to be a good co-parent. Even if you and your ex don't really get along, you can still use a professional approach to your parenting agreement. This enables you to communicate about the children in a respectful manner. Seeing you do this might encourage your ex to follow suit.
Another thing to remember is that having communication between homes can benefit the children since they have a positive example of how adults should behave. It also ensures that they aren't playing one parent against the other since both homes are freely communicating about what's going on.
Double check the routine you have for your children. Maybe there are some aspects that can change a bit. For example, your child's bedtime might change because they are getting older. You may need to adjust dinner time due to extracurricular activities.
By adjusting things so that the situation is what's best for your children and what works for your home, you may find that you have less stress about child custody matters during the new year. This enables you to enjoy the time you have with your kids.