It's Monday and in ten hours I will be hitting the stage with the return of my Nina Simone show at City Winery Chicago. I have NO idea how many tickets have sold. I checked a week and a half ago and the low sales frightened me. The venue seemed secure that the show will sell well. Of course I am not so sure. I never am. Folks say: "you always sell out!" "You always pack the house!" I never count on that. I push, push, push the show until I am crazy. But you never know ... Dress is laid out. …