Where to find an address to send 2017 taxes? Do I need to fill out a form before sending them if I owe money?

My dad claimed me as a dependent in 2017 because I am still in school. He never told me I also had to file a return for myself until this year. He is not claiming me on 2018 taxes but my 2018 return got rejected because I did not file for 2017. So now I am behind on both years. How do I figure out where to send the 2017 taxes? I have filled them out and printed them but I am not finding an address to mail them in to.. Also is there a form I have to fill out before I mail everything in? I think I will owe about $500 before any late penalties.