To be entirely honest, I am an extremely confident person, and I don't think I would have gotten into this business if I felt that I wasn't going to succeed and I intend to be in this business, for the rest of my life.
Dwell not on the past. Use it to illustrate a point, then leave it behind. Nothing really matters except what you do now in this instant of time. From this moment onwards you can be an entirely different person, filled with love and understanding, ready with an outstretched hand, uplifted and positive in every thought and deed.