For example, I have not yet heard of any winning strategy for playing dice or slots.
I heard a strategy for playing games is patient, where most gamblers don't have.
It is not always possible to maintain patience when you lose and lose money over and over again. I know this very well because I have experienced it many times in practice. And this is despite the fact that I did not set a goal to earn money.
I feel your pain, the same endless loop has happened on my unlucky game sessions too. Patience is not required for the last dollar of bankroll, the game melts down the balance faster than the blink of an eye if you have strong patience. Let's accept it, there is no way to beat the game in casinos, and wasting time reading the strategies developed by strange genius people is just another form of fooling ourselves.
No particular pain. I play for fun and not for money, and even so, sometimes it's very hard to be patient. I can't even imagine how those who play for money and start losing many times keep their patience.
Well, that is a big plus in your personal gambling journey. The pain is subjective, for example, you can think about spending that amount for upgrading the graphics card of your pc to the latest model or something else. Those who play for making money or even for living, it does not pain surely maybe tragedy. One thing is surely here, the slots are not better than dice for those mentioned groups of people due to the lower house edge and better risk/reward ratio.