I Made A Dumb Decision

When I was in my early 20s, I made the dumb decision to get solar panels on my parents house. Under the pressure of my mother who was constantly in my ear telling me to keep the house (It is only owned by my father). Under the condition that I take it alongside my two brothers. One younger irresponsible alcoholic little brother and one older autistic always needing help with everything older brother. The salesman also has done a good job pressuring me, I can’t tell you the amount of times I tried to back out but he kept reassuring me it wasn’t a mistake. He said if I move away I can easily transfer the contract under someone else. Wrong. He said it would only be under my name, also wrong my dad’s a cosign. He said it would be saving me money and I would be paying around $220 a month also wrong. I’ve been paying $390. Anyways I’ve finally moved and I couldn’t transfer the loan to my father. My little brothers taken over the payments (late every time) but he has shit credit. Should I file for bank ruptcy? Attempt to sue? idk any advice would be appreciated. If I’m fucked that’s cool too I’ve made peace with that. My whole life’s been a shit show.