Get an attorney. Divorce is complicated and you just need one.
You can do a mediated divorce where you sit with attorneys in the room and hash things out. But beware, divorcing an A can be a workout. Get representation.
I just finalized my divorce after 2.5 years! It has been sheer hell at times. Due to my xAh's passive-aggressive maneuvers (three different attorneys, agreeing on stuff in mediation then changing his mind, not reading anything, dragging his feet, being cheap) it cost $50,000 in lawyer fees. Crazy!