Years ago there was a TV series called Dragonball Z, in this journey it's about Goku (the main character) and his friends traveling, fighting bad guys and saving the world.
Goku is a Saiyan an alien from Planet Vegeta. This alien type called Saiyan grows and gets stronger after a beat down.
Why is this important?
Everyone loses sometimes and losing feels awful. Our brain and body don't automatically give us grow and improvement after a loss. You've to do this yourself. Otherwise, you'll keep walking against the wall.
HOW?
ASK YOUR OPPONENT
Why did I lost?
Ask your opponent
How did I lost?
Let him/her explain
What can I do better next time?
Practice with them and listen carefully
I learned a lot from that show.