You can start by talking to your probation officer about the possibility. You have very little remaining probation, so if your probation officer says "no" I question whether it's worth the cost and time involved with trying to get the judge to review the denial - odds are the judge will side with the probation officer, anyway.
Also, your reason for wanting to get off probation, not liking having a curfew, is not likely to be viewed as even slightly compelling by the court or probation. Got a better reason?

