To reach your full potential you need to become more aware of your own physical, technical, and mental strengths. Watch how you stand, breathe, smile, etc. Repeat this exercise 8-10 times a day for at least a week so that your subconscious mind will have fixed your positive image. Through self-awareness you will gain more mastery and control over yourself and your thinking. Your heightened awareness and determination to change will help reach step two, which is to acquire self-control .
Successful singers control their own destiny.
When you become responsible for your own actions, then control is yours. Then you are free from luck, good or bad, from any accidents that might occur, and, most importantly, from other people. Never surrender control to external forces. By changing what you can directly control you will have more success. Unfortunately it is the other way round.