I really feel for you mate, I’ve been through it and wouldn’t want to do it again. My advice would be try to keep it as civil as possible between the two of you, the more you fight the more money you end up giving away to solicitors.
There is light at the end of the tunnel even though it doesn’t seem like it now. Talk to your friends and family, it’s really hard to do at first but it helps a lot. Good luck.