Nobody has ever achieved something great without first having failed. Instead you should always ask yourself why you failed and learn something. I was taught that it is only through mistakes that we learn. Only by falling down does a baby learn to walk. It is difficult for me to imagine a world without problems.
Problems help shape our character.
It is through problems that we learn and grow. If there were no problems in the world, there would be no challenges, and no opportunity to learn and grow. To illustrate this lesson about life, my dad told me a story about a Chinese farmer who had an apple seed. If the farmer leaves the apple seed alone on a plate, it will just remain there. It will not grow and bear fruit.