but the courts system intimidates me and causes a ton of anxiety.
You should be able to go and observe some divorce hearings. Your lawyer should be able to help clarify the process and give you an idea of typical outcomes. Most of my fear went away after my first consolation with lawyer.
I just read you first post. Has anything changed? I assume you currently have a 50/50 in place. You are still in the marital home. You are setting precedence.
The mother is going for full custody. When did her desire for this change? I bet after the lawyers got involved. Was she fine with the 50/50 before Lawyers involved?
What is the main reason you go to work? I go to work to make money. Why do lawyers work? Use logic during this process. Having lawyers argue for you is expensive.
This is not legal advise. Just another option to consider. I believe it is good for people to know about many options.
Fight fire with water. If she is claiming that you do not have a 50/50 agreement, then really consider filing an injunction that the kids are to remain in the family home until this matter is resolved. They need stability and mother is moving multiple times. Clarify this option through your lawyer.
Also look into father rights groups in your area.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712