This is my opinion: Everyone wins. If you win, you win because you played better than the other person. If you lost, you win because you learned something.
As long as there is something you enjoy about the game you are winning. If there's nothing you enjoy about it then chess is not for you. Win, lose, draw, just have fun in the process.
Everyone loses. If you lose you deserve to lose because you played poorly
If you win it is only because the other person played poorly.