You can get a restraining order to get her to stop harassing you. You can get that as part of the dissolution proceedings, so that you don't have to pay an extra filing fee for that.
You need an attorney, Mister Stopthemadness. In fact, you can't afford NOT to have one.
Ask some friends about whether they have an attorney they would recommend. If not, you can go to family court and watch attorneys in action. If you see someone whose work you like, ask for a card and try to retain that person. Otherwise, you can call the bar association in your state and get some referrals for family law practitioners.
Best o' luck!