The strength of the mind is no way connected with the color of the skin. If you want a quality, act as if you already had it. Try the 'as if' technique. My philosophy is that only you are responsible for your life, but doing the best at this moment puts you in the best place for the next moment. Our doubts are traitors, and make us lose the good we might oft win by fearing to attempt.
Energy creates energy.
It is by spending oneself that we become rich. Your failures in life come from not realizing your nearness to success when you give up. Successful people succeed because they learn from their failures. To be who you are and become what you are capable of is the only goal worth living. It takes a lifetime of hard work to become an overnight success.