First of all...stop drinking and driving!!! Why hasn't anyone said that yet? You are in a profession to help others, care for their physical health, and improve their quality of life. Why would you put lives in danger by getting into a car after drinking? I know a lot of people do this, my own friends even, but come on!!! Okay, that was part one.
Part Two: I hope you have a good lawyer. They can try to find ways to have as little on your record as possible. Also, I think a DUI stays on your record for seven years, not forever...I think.
I hope you work things out, professionally and personally.