Hi, and welcome -
My first big step came in the form of being honest - with my peers, with my group, with my family, but most of all with myself. It was a tough thing to do, with all the others - and horrifying to do with myself; but I can say with all sincerity that it definitely got me going in the right direction. I had been dishonest with myself about my feelings and my drinking for so long, and had repressed so many things I had done or said while drinking, that I felt absolutely and completely exposed.
As for courage? It takes courage to admit that you've been wrong, that you've done things you aren't proud of, and ultimate courage to want to change. Change is the scariest thing I've ever done, but it is sure worth it!