The way I see it is you have two choices in life; you can be grateful for everything life has given you or you can be resentful for everything life has done to you. Your degree of happiness is directly proportional to the conviction of your choice
The secret of health for both mind and body
is not to mourn for the past,
not to worry about the future,
nor to anticipate troubles,
but to live in the present
moment wisely and earnestly.
Begin doing what you want to do now.
We are not living in eternity.
We have only this moment,
sparkling like a star in our hand
and melting like a snow flake.
Give all options to the opponent, if you win its historical, if you fight and loose- he is definite to loose next time, if you loose-you can enjoy his happiness even.