Live in the NOW. Don't get stuck in the past or the worry of the future. Dwelling in the past or the future is the cause of stress. All you have is NOW. Remember the past is gone forever and the future never arrives because when the future gets here, it become NOW. Ever notice that sometimes the things you were contemplating in the future never show up at all or at least not as bad as you were thinking.
You are not your thoughts. You make a choice to worry.
Put yourself in position for good things to happen.