"Go take a hike" -- you might want to say this (scream this?) to the partner you are splitting up with. (Okay, let's be honest, you might want to yell something much worse at the top of your lungs....) If you both were to take this advice, go out for a walk in nature, your divorce and custody proceedings would probably go a lot easier. Science backs up what we know intuitively -- when we are walking and breathing in nature, we actually feel a lot better, calmer, and are helping our physical health as well.
Walking in the woods is advocated by governmental agencies, at local, state, and international levels. In Japan and Korea there are "healing forests." The State of New York touts: "Think of it as a prescription with no negative side effects that's also free."
Being in a forest won't magically make your very difficult custody dispute or your frustrating fight over assets disappear, however, it almost certainly will help lower your blood pressure and calm your mind as you deal with these issues. I hope you try it -- if nothing else you will have spent a few minutes taking a break from your problems....