Slots are mostly (fully?) about chance. Streaks of wins and losses can make it feel like something is “wrong,” but in reality, the outcome is impossible to predict. Sometimes it seems like the system is against the player, but it’s just how probability works. As it is hard for us humans to accept chaos, to accept randomness, we are trying to rationalize it, to find patterns and reasons behind them.
Slot machines are made for entertainment, not for earning money. Which is why it's important to set limits, stay calm, and enjoy the game, with occasional the wins.
When a gambler wants to hope for changes in his financial situation, he begins to believe that accidents are not accidental and that they can somehow even be controlled.
Although slots are really a story about absolutely random wins that can add up to a series of horrors, because of which the gambler begins to think that he somehow influenced the system and now it is controllable. But this does not make sense, as does the search for patterns of failures. Such a gambler needs to understand that all this is just one big random.