I work in NJ but live in NYC. I am confused over what forms I need to fill out. I believe I have made an error in that I have filed NJ state tax using the over the phone service. Now I am told that I should have filed as a nonresident in NJ which would have gotten me all of my NJ withheld tax back and then filled a NY state tax return. Can you give me instructions on what I should have done and what I should do now including what forms I have to use.