Another whom has been through this more than once and just recently

Fleur gave you some great tips!!
Also you have to work out a plan that will also not disrupt your childrens lifestyle and environment.
Normally a family report is ordered when doing these cases where both parties are not willing to come to the table and this person will assess each and every aspect of you your partner/ex and also your Childs communication, body language etc everything and more this often gives a judge if taken that far more of an inlook into what situation your child is best to thrive and be stable in..
Mediation is also a common fact these days as when you decide on certain things it's done face to face with lawyers and a court appointed mediator to help come to an arrangement you are all happy with in my case in the first occasion nearly ended in a brawl

When going this road you have to be very well equipped with the knowledge of what you want to achieve and be certain you achieve your outcome.. It's a very long process mine in the first instance took 15 months and it is a very straining period emotionally and physically also you must be prepared for anything and everything.
The courts will always look out for the best interest of the child or children and the result isn't taken lightly.
Best thing you can do is get equipped with a lawyer even if not in court they will be your legal go to and also the one to set the notions