They train their mind
Every true champion has a special mentality built over time. He sees things away from the ordinary. He doesn't react to situations rather he responds to them. He believes in his creator and in himself. Things may fall apart and people wail but to him, he considers them as stepping stones to greatness.
They have a vision
They tend to see beyond the obstacle and challenges by trying to make an opportunity out of it. They capitalize on the advantages of that problem and also get experience from it.
They are selfless
He love putting himself in the fore-front, he takes risk, he dares situations, he faces dangerous challenges but does not complain neither quit. This are the traits of a true champion.
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They face challenges
It is success that is usually celebrated; there's no mention of failed points when the celebration is on going. Remember that every champion is a product of challenges. Just don't let the challenges of the day steal your excitement in life. Face life with a sense of mission, and don't bow to any challenge, no matter it's magnitude. Act as the champion that you were meant to be.
Calling yourself a champion doesn't make you one but it's a step in the right direction because it's a positive confession. You have to put in hard work, smart work and dedication.