How to let go of a blunder and not be mad about it

I'm gradually getting better at this, but now that it's late at night and my general fortitude is running out a bit, it eats at me that I could have taken someone's queen but didn't and instead got backed into a corner by said queen. I noticed her a fraction of a second too late. I know we all blunder. I still have a hard time not taking it personally.

Is there a specific mental skill you can learn or do you have to just wait to develop a thicker skin?

It's not the hugest issue and I'm improving. Certainly at least have improved beyond my old 19 year old self who punched in a computer screen because I blundered my queen. I still would like to evolve further and be able to just let it go.

I think you need to think more when you play the game so you don’t blunder

Only 0.0001% ppl will blunder thier queen on daily games

Don't sweat it. Everyone blunders. I know this might be hard for the chess world to believe but even I make a rare blunder from time to time. OK like every other game. OK to be honest almost every game. Just try to laugh at it and learn from it.

“Taking it personally”? “Punching computer screens”? Chess is a game, taking it personally and punching screens isn’t. I understand anger, lived with it a long time. It’s a choice we need to make. You can make that choice.

All mistakes are learning opportunities in disguise. Treat blunders and losses as opportunities to reflect, to learn, and to grow as a player.

Also: whenever you see a move that you're ready to play - stop - and look for a better one. You might not find a better move, but by looking a second time, you might notice something that you would have otherwise missed.

Just recognise you have nothing to be angry about. It’s a game, you play it for fun. Unless you’re a super gm whose livelihood depends on not dropping pieces, it shouldn’t be more than mildly annoying or amusing. There’s no specific chess skill, it’s just about controlling your emotions.