If you believe in yourself and have passion, you can succeed.
It is true that integrity alone won't make you a leader, but without integrity you will never be one.
You cannot perform in a manner inconsistent with the way you see yourself.
Getting knocked down in life is a given. Getting up and moving forward is a choice.
Character produces endurance and persistence when the going gets tough, and life truly is an endurance race, not a sprint.
Be grateful for what you have and stop complaining - it bores everybody else, does you no good and doesn't solve any problems!