I got an OWI back in the summer of 2005. I used to abuse alcohol too. The whole OWI experience was very sobering. In the end it turned out to be one of the best things that have ever happened to me. I really needed to reevaluate the direction of my life!
I actually had to go to rehab, where you sit in a circle and introduce yourself as an alcoholic (I'm not one either).
We were so broke at the time and the whole experience was so expensive I had to get a second job!
I went to two AA meetings. They sucked.
Don't beat yourself up. People make mistakes. I finally saw a pdoc and was diagnosed and put on meds after the whole OWI infamous incident, and I started seeing a therapist.
Perhaps either of those things would help you?