When the doom switch is pulled there's nothing you can do except walk away.
Skill can only do so much. Ultimately is how the cards fall that determines if you win or not.
People will say as long as you put the money in when you are ahead you will come out on top. That is not necessarily true.
Sure, the concept is straight forward. If you are getting it all in with 70%
equity for example, you would think that over the long run you will win 70% of such showdowns.
That (hopefully) does work out in the long run, but what's more important is the size of the pot in those situations. If you get unlucky in huge pots, you will end up winning less money than you SHOULD be winning.
It's perfectly fine to feel ripped off because you probably were ripped off. Feeling like you did nothing wrong and therefore you should feel fine about how you played doesn't really help things. If you played perfectly and still lost, then you have the right to feel angry. But, if the anger is affecting how you normally play, quit playing until you mentally reset.
IF you did make some mistakes and can improve by correcting those mistakes, then go ahead and study and improve, but if you did things perfectly and still lost, then it really IS luck and you should quit if it ain't your day.
I've been in a terrible run and I was supposed to not play cash games until 2022 but I broke my own rules cuz I felt good. I played today and got screwed by two more river 3 outters. Had I won those
hands, I'd be up about 300 bbs today. Instead I lost nearly 200 bbs.
(I don't multitable and I don't play many hands a day so that's actually a pretty big swing for the low volume that I put in)
It's affected my game now as I am overthinking and assuming I will lose, so I am gonna really have to not play again until the calendar flips.