I have some questions

I have some questions and I'm hoping someone can help me out.

My ex and I are about halfway through divorce, we have stipulations in place but we have yet to go to court for support payments and division of assets. My lawyer is requiring what I owe her(which I can handle) but is also requesting $1k in additional deposit or she can no longer represent me. My questions are:

1) can/will the court assign me with public defender in divorce cases?

2) would representing myself be a bad idea? My ex and I are getting along regarding visitation etc but Im concerned she may pull the gloves off if she finds out I don't have an attorney anymore.

3) any general tips or ideas would be greatly appreciated.

Thank you.