any new advice is also appreciated
Live a life of love and integrity before the child and as much as is possible live peaceably with the mother and others. It will take the wisdom of Solomon and the patience of Job to navigate going forward.
[color=000066]If any of you lack wisdom, let him ask of God, that giveth to all men liberally, and upbraideth not; and it shall be given him.
(James 1:5)[/color]
Keep yourself strong in the Lord at all times. You need to stay filled with His Spirit. This will help your spirit and disposition be right during serious trials. It is a long and hard road, but one that God has brought men and women through before.
Try to live a life of moderation and contentment so as not to provoke the other parent to jealousy. Be involved as much as is reasonable with your child, but not so much as to cause friction in the other home. Pay attention and pray for wisdom and guidance when a problem comes up. It is easier to hurt than to heal, so use your words carefully.
Don't mean mouth the other parent. You can disagree, but don't mean mouth them no matter how bad they provoke you. The child will take that to heart. Remember, where there is no tail bearer strife ceases; so don't get bent out of shape over, "He-said and she-said." Sometimes kids don't know they are causing trouble unnecessarily, etc.
Just some thoughts...