You may not able to control every situation and its outcome, but you can control your attitude and how you deal with it.similar to what I say a lot.if you can't change the situation, the only other thing then that you can change is your attitude.
Think positive, be positive, and be you in a positive way. Stop worrying it will stop you from thinking happy thoughts. Its time we worry only about how to stop worrying and to just be happy. just be happy