What we face may look insurmountable. But I learned something from all those years of training and competing. I learned something from all those sets and reps when I didn't think I could lift another ounce of weight. What I learned is that we are always stronger than we know.
Concentrate and think upon the problem in mind until a satisfactory conclusion is reached, and then finally go ahead. If you have made a mistake, all right. Never find fault with a man because he has made a mistake. It is only a fool that makes the same mistake the second time.
If a problem is fixable, if a situation is such that you can do something about it, then there is no need to worry. If it's not fixable, then there is no help in worrying. There is no benefit in worrying whatsoever.
You cannot be protected from the things that frighten you and hurt you, but if you identify with the part of your being that is responsible for transformation, then you are always the equal, or more than the equal of the things that frighten you.