The author writes about the Martingale strategy, but not in its full version, but in a somewhat abridged version. At the same time, he does not mention what to do if, for example, we lose many times in a row. Let's say, 5 or 6 times. If after the third loss we need to return to the initial bets, then here too we may face an unfavorable series of losses. In general, I must say that in practice, losses several dozen times in a row are quite common. In theory, this is a very unlikely event, but in practice it happens unexpectedly often. This has nothing to do with responsible gambling.
The strategy is that you don't go above 3 loses in a row, immediately that happens, turn your machines off and call it a day, if you go above 3 loses it already means you have started chasing your loses, you can't win all the time, take the loss and leave come back next day there's always gonna be another opportunity and be patient with strategy and opportunity to showcase itself then take the risk.
The psychology in gambling is called revenge gambling and that's when the system will teach you some lessons, with a good strategy plus luck, you're good to go in casino games, don't be addicted to play all the time, The platform isn’t place to get rich quick, play for fun and for good mental health, I know a lot of gamblers won't stick to playing just a maximum of three times a day. But if you can go way up to 5 times with and profitable that's on you.