Your drunk driving arrest seems like another lifetime ago, but the consequences continue to haunt you. Maybe you had to switch your college major or drop out altogether because of the institution's code of conduct. Maybe the conviction precluded you from continuing on the employment track you had planned. You may have missed many opportunities in the past decade because of that one mistake.
A drunk driving arrest is scary, especially for someone who has never been in trouble with the law or gotten a DUI before. If it is your first drunk driving offense, you may be confused as to what you are up against, but you would be wise to take your situation seriously. There are serious penalties associated with a conviction for a first-time DUI.