Go down to the Court and ask the clerk for the forms that you need to fill out and file. I don’t know about Indiana, but where I live and work (Maricopa County Arizona) our Superior Court has all their forms online. You might want to check to see if your county does too.

You’re avitar is female…are you really a man?

Anyway, I think you will need a lawyer. Uncontested divorces can be as low as $500-700, but is hse’s contesting, it could get a lot more expensive. Have you tried asking her what you need to do to move to the next step? If she will not communicate with you, you need to hire a lawyer to communicate with her lawyer. Sorry.