Don’t know where to start

So my fiancé and I want to get married sooner rather than later to escape from an abusive situation, issue is we have no way to prove residency and we are up in college and not near the court where we live over the summer, but either way we have no proof of residency due to being in the dorms and then living with a friend, only thing we would have is my partners phone bill but idk if that would count as a utility bill, if it does that raises another how many billing cycles would we have to wait for it to be sufficient for the court, we are located in Ohio, I guess overall I’m just confused on what to do or even if we would be able to go through the courts by us at college, as we would have no way to get “home” to go through thoses courts