Your life is in your own hands, but you must learn to gain control of your thoughts. All of your problems of fear, failure and doubts are because your MIND is ruling you. Your mind has taken over and you are the slave and victim of your uncontrolled negative thoughts.
It is as simple as that.
Take control of your mind and your thoughts.
Every day, bit by bit, watch your thoughts.
When negative thought comes, stamp it out, and refuse to allow a negative thought to take in you by thinking of something good instead. Think more and more good though, and soon they will come automatically.