If you and your ex are not following the custody agreement, there are a few things you can do.
If you have a lawyer, you can talk to them about what to do. They may be able to help you file a motion to enforce the agreement.
You can also try to talk to your ex and see if they are willing to work with you to come up with a new agreement. If they are not willing to do this, you can try mediation.
If you are still not able to come to an agreement, you can file a contempt of court action. This is a last resort and can be expensive.
If you are having trouble with your ex not following the custody agreement, there are a few things you can do. Talk to a lawyer, try to talk to your ex, or try mediation. If all else fails, you can file a contempt of court action.