In life, don’t expect anything from anyone.
Because expectation, when not fulfilled, gives you pain.
When you get something without expecting it,
It gives you pleasure.
Keep doing your part
And leave the rest to God.
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.
Perhaps the most valuable result of all education is the ability to make yourself do the thing you have to do, when it ought to be done, whether you like it or not