help about immigration?

well I was suppose to do an application for naturalization, I did the whole thing, but i later found out i messed up on the last part about the oath and stuff, I said no to all of them, I said no to "do you support the us constitution" I was actually meaning to say yes, But back then i was really exhausted from my wrestling practice and so i did not actually know what i was writing, i also filled out my dad;s application and i just wanted to get mine over with. Now i think im messed up big time, what can i do??