This is a note to myself and others like me: underachievers, those with gifts who believe they haven't fulfilled their potential, those who have been writing a book, play, or dissertation, making a movie, recording a CD, going to a comedy open mic, opening a restaurant, going back to school and haven't done it yet. We know who we are. I have written about this shit for years: losing weight, writing my one woman show. And I reckon this is just another testament in a long series of promises I …