Haven't seen my daughter in 2 years

My daughter lives 40 miles from me. Prior to 2 years ago, I saw her on my standard, allowed visitation. My son asked to come live with me. When he did so, I asked my ex if we could just call it even. I won't ask her to pay child support and mine will end too. The only way she'd agree to sign the paperwork and let my son come live with me was if I continued to pay child support. I was determined to have my son live with me that it was worth it. She then tried to move out of state. I told her that I still had rights to my daughter and I needed to know how she was going to transport my daughter to see me if she moved out of state.

It's a long story, bottom line. She continued to interfere with my visitation to the point of picking her up from school before I could even see her.

I still pay support and don't get to see my daughter.

I'm screwed by the system.