Yes, sometimes the mind can play tricks on us. It has happened to me that things that I don't want to happen to me because I see them as very bad, do happen to me in the jkgame, it is difficult because the mind is conditioned in an impressive way and that which we do not want to happen, does happen, that is why what we should do when playing is relax and accept the designs of the game, the less we try to force things, the better, because if they happen in our favor the blessing will be greater.
I like what you have said on the last sentence.
Because that is true, we don't have to force things so that we can be good at what we gamble with.
Just relax and let things happen according to its own, there will be less stress and emotion if just relax as we gamble.
Not getting too attach will give you some breathing when the outcome did not turned to your favor, though not all the time a gambler can be as chill as it is, it helps being relax while deciding your next position or might be quitting or stopping your sessions to avoid losing a lot or to keep whatever you already earned.
It's a matter of having a clear mind when playing as it keeps you to where it should be and not to overlook the decision you should make..