Stop worrying bout things you can't control. Breath deep, say to yourself "I'm having a worried feeling.", remember that it's not a tidal wave that will carry you away, and get on to the next thing on your to do list.
Asha Tuson: “Your journey has molded you for the greater good. It was exactly what it needed to be. Don’t think you’ve lost time. It took each and every situation you have encountered to bring you to the now. And now is right on time.