Child custody cases are difficult enough without having extra stresses to work through. When you are in this situation, you might want to put together a plan to make it all as easy as possible. While this is going to be challenging at times, you can take steps to encourage teamwork.
First, make sure that you are focusing on your offspring. You can't get so wrapped up in the past or with trying to make things hard for your ex that you forget about the children. Keeping your focus on the little ones can make it easier to work through situations that come up.
Another thing that you need to remember is that you can't always voice your opinions. When you have something to say about your ex, make sure that you aren't saying anything negative around your children. Your ex is still the children's parent so you should be careful about what message you are conveying.
You should make sure that you are realistic about what you can and can't do. Don't promise or offer things that you won't be able to do. Think about your finances, schedule and abilities before you speak up. Broken promises and offers that aren't followed through with can make a child custody case go sour quickly.
No matter what type of relationship you have with your ex, you need to be respectful. Not only can this keep the child custody matters civil, but it also sets a good example for your children about how adults should work together nicely even when circumstances are difficult.
Source: Parents, "9 Rules to Make Joint Child Custody Work," Kate Bayless, accessed March 09, 2018