Moving in.

So I want to see if someone knows the answer to this. For the past 16 years i have lived with my mother. I have anxiety and depression and she seems to just make it worse. I want to move in with my dad who owes her money from back child support that he wasn’t paying for i think the first three years. He thinks if she fights us in court and gets it to where i’m seeing her 165 days of the year he will still have to pay her that money and she won’t have to pay him any child support. does anyone know if that since i am 16 i will be able to appear in court and fight to see if i don’t have to see her that many days because the problem is if he has to continue paying this much money he won’t be able to afford rent. he makes descent money but the places we’re looking at in the location we need the rent is +1000 and he pays her about 600$ a month. someone please help because living here is not good for my mental health anymore. i love my mom but our relationship doesn’t work out when i’m living in the same space as her.