People are afraid of failure and this is the key reason why they will not succeed. It is a fact that most of the people who now are rich and successful experienced several failures before. To a certain degree, they all have failed in the past so let's look at how success comes after failure. If you examine this infographic (Courtesy of Covcell online education), you can see what kind of set-backs these famous people experienced before becoming so successful.
So you better not give up your efforts when you feel that success seems unlikely. Just keep working hard and have faith. There will be no success if you haven’t failed before. This is just a fact of life that you will need to deal with.