Enforcing Custody Orders: I Was Denied Visitation of My Kids

My question involves a child custody case from the State of: Indiana
My ex and I have joint custody with him having physical custody. My kids are 15 & 17. 7 weeks ago we were informed that my son and his girlfriend are pregnant. At that time my ex left me a voice-mail stating that I would no longer be allowed visitation. My daughter asked to come live with me. At that time he took her phone away so that she could not contact me (we text each other all day). I tried asking the police for help & they informed me that this is a civil matter and there is nothing they can do.
I don't have money for a lawyer. I called my County head of the bar and he said no one in our county will do pro Bono work. I contacted my state "free legal help" hotline but was informed that they do not help with family law.
I'm scared to go to court pro se because his lawyer eats me alive. He confronts me with crazy false information and I get so flabbergasted and to tongue tied that I end up looking like an idiot.
What can I do?

Enforcing Custody Orders: I Was Denied Visitation of My Kids