Am I the Only One Who Thinks Like This?

I was listening to NPR this morning and they were doing a story about Supreme Court nominee Sonia Sotomayor. It was a great piece. You can listen to it here. As I was listening, I kept thinking, man, she really made something of her life. I wish I could have done more with my life. And then it struck me that I was talking to myself like my life was already over and I had missed my chance. The reality is that I can do something great with my life (and I've done a couple pretty good things already). I just have to recognize opportunities and capitalize on them. I don't know why my first instinct is to think that I'm not special enough to do something great. Can anybody relate?