First Tri -- First DNF

Today had to be one of the worst days in my life. My brother and I had our first tri ever this morning. Woke up early, hydration and energy was good. Me, my brother, my girlfriend, and brother in law showed up at the race. Got body marked, listened to the pre race briefing and lined up for the swim start. The swim went extremely well. I passed well over a half dozen other racers in the snake swim and although I was a little out of breath, I would call it a huge success. T1 was extremely speedy and I was off on the bike course. I was flying along (for me) averaging about 20mph. About half way through the first loop I finally got in control of my breathing. Nothing could go wrong now... I complete the first loop (or so I thought at the time) and started working on the second. Pace was still excellent. Things were really looking up. As I was coming to the end of the second lap I realized that I had missed a turn on the end of the first lap. Im not sure if I was staring at my computer or what, but I competely missed the sign. Quickly realizing what had happened I slowed down, rode to the transition area, picked up my stuff and put it in my car, then went to cheer on my brother as he crossed the finish line. I can't believe I made such a bonehead move. I guess ill have do a little better in October... Hope everyone else faired better than I!