Switching to other games is good as long as you still have bankroll, jumping from one games to another will refresh your mind and you will not feel boring while gamble. But if people switch games in order to earn money and thinking the current games have no luck due to they ever win big, it's really wrong.
Gambling is just one of many ways to entertain, taking a break for few days or weeks aren't wrong if you're still emotional with previous losing streaks.
Yes it is true that switching games may be able to refresh the mind as you said because I also sometimes often do that when I play in online casinos especially in slot games which when I see the spin of the game looks to drain my balance very quickly then usually I will switch to some other game that is more fun and that has a spin that is not too bad so that my gambling session can last longer and I can feel the pleasure that is also longer, But of course if the purpose of switching games is to get a win and assume that the new game you choose 90% can bring victory then obviously as you say that is a big mistake, however and wherever you play it is always recommended not to put too much hope on winning because usually this mindset will only make us feel more disappointed and sorry when it turns out that the results are not what we want.
Exactly, gambling is nothing more than an entertainment activity like any other but perhaps the difference is that you have to spend money as capital to be able to engage in gambling without having excessive expectations of winning and I would say that the best approach to gambling is to think that the money you spend is money to pay for the game you have played and enjoyed, and not as capital to be multiplied.