What should I expect in court for a speeding ticket?

I got a speeding ticket the night/morning prior to going to Orientation at my school, SUNY Stony Brook. I was doing 80mph at three in the morning on the Seaford-Oyster Bay Expressway on Long Island, New York, which has a speed limit of 55mph. I'm eighteen, I have a clean record aside from this, and at the time, I was less than a month short of getting through the six-month probationary period for newly licensed drivers. I do not have the means to get my own lawyer. I have court at nine in the morning in Hempstead. Any insight would be greatly appreciated.