Yup, taking the risk and look if that strategy will work, if not then try a new sets of strategy that you may find that will work to increase your initial capital, I guess people who really loves experimenting their options always aimed for the betterment of success not unless you are addicted or you are just playing to kill some time where you are not that much concern about the outcome but for those who are aiming to have a better result, they will look for it and try to keep adjusting and see if there's a difference that will happen after changing their style of playing.
Finding a working strategy is the most difficult task, and in gambling it is difficult to find one that will work well, because exceptions are always possible. Of the possible options for earning money, gambling is definitely not the easiest for this, so I think that you need to earn money where it can be done more easily, and in gambling leave room for possible mistakes and losses, but do not try to make it a source of constant income.
I agree with you that a casino is a place that cannot be a source of permanent income. And the reason is simple: the casino is an endlessly self-improving mechanism. It consists of dozens of specialists in various fields, ranging from mathematics to information security, as well as psychologists.
They have long since devoured all the earning strategies for simple gamblers, leaving only a tiny chance of winning for the players.
That's reality, they put the bussiness having deeper knowledge about their edge and advantages, though in some cases due to luck a gambler may win decent amount of money but with how the business been set up, there are gamblers that may lose and cover whatever a lucky gambler take away from the house, and the cycle will continue.
Gambling business is a well established industry which really converting huge amount of profits coming from each gamblers who uses their services.
If you are not smart enough to wisely takeaway some profits when you got a chance, it will just go back if you keep playing, better to stop and quit away with your profits if given a chance.