What do you think about poker variance?

I know that luck influences, but it's still not easy.
You have to have nerves of steel not to let yourself be shaken, because sometimes you do everything right and yet you lose.
But I also know that if luck didn't exist, poker would be completely different... probably only very skilled players would continue playing.

Poker variance = short- term luck.
u can play great and still lose, or play bad and still win. What matters is long term consistency, bankroll control, and not tilting.