An article by Jackson Yee on Mental Toughness.

Fear is a needed quality to develop mental strength. By facing fear, you learn courage. Being fearless is a misconceived trait. As admirable as being fearless can be, it isn’t realistic nor does it provide any benefit to being a mentally tough beast. Being threatened by fear is the catalyst for you to strike! Confronting fear with brave actions is how you get tough.

Fear is an emotional response. At times, fear is irrational and blown out of perspective. It is not easy getting over any shattering experiences, but with guts and determination, you can get over any painful ordeal. Life is full of disappointments and letdowns. When we don’t get what we want, the consolation is that we gain experience. This doesn’t seem like a worthwhile prize, but see how the adversity can enlighten you. If may not be obvious, but look hard at any opportunity for personal growth. Take in the life lesson and move on.

A lot of wisdom in the article, applicable no matter what the context in life.