The only frustrating thing for me is when a hand ends and I think I played it wrong.
Before, badbeats frustrated me, not entering the ITM, being on the verge of a final table, etc.
Over the years I have gotten over it.
When you start to understand that an MTT can be either a big win or a complete flop, then you start to understand the game.
If you do not understand that chance is part of the game, then you will feel constant frustration, which does not add up to achieve the final objective, which is to increase your bankroll and play better every day as much as possible.
My regards, brother