How can I prove residency without a lease or utilities?
This page from SUNY Buffalo may be helpful to you. If you meet all the residency requirements (and from your question, I’m not 100% sure that you do), you could probably have your landlord notarize and sign something that affirms you were living in the apartment for 12 full months. “Living in New York State to attend college does not make a person a permanent resident of New York State. A person does not acquire a New York State domicile only by being physically present in New York for the sole purpose of attending college, or by being physically present in New York State for a period of twelve months.” and “Parents’ federal and state income tax forms which do not claim the student as a dependent (if the student continues to receive financial support, the student shall not be considered independent)” may apply to your situation.