In my opinion making cash from gambling is not a good option and the statistical probability that you will win every game at every casino is very low. I think winning or losing every game is completely in your head, so your individual tricks are not there. However, we all have some kind of luck so we should strive for what is possible for us.
Depends on what type of gambling we are talking about.
Games like dice, slots, roulette and crash are entirely luck. The gambler could bring on strategies on how much and in what manner to bet but have zero involvement on the result.
Other form of gambling like sports betting can be analyzed for favourable bets through head to head analysis and current circumstances but the lower the risks, lower are the odds. The gambler can analyze and make better prediction yet they personally have zero involvement on the results.
Another form of gambling like P2P games like poker that involves strategy and decision-making abilities can greatly affect the chances of winning for the player who have better strategy.
Well it's true that there are basically several types of gambling and probably very many, and also there are those that really rely on pure luck and those that do not. That's right, as you said obviously, gambling like slot machines, roulette and craps really only rely on luck and nothing more than that. So I hope whoever they are (gamblers) should first see what kind of gambling they will do, if they really want to play on the three games mentioned above that rely purely on luck then obviously you have to be careful there, don't let you come with the wrong mindset especially in terms of victory, it is very clear that in gambling there is no definite victory because it was created only to find pleasure, nothing more than that. But well as you say it is true there are also other types of gambling that can actually increase your chances of winning with some skills and analysis that you can do there, for example like sports, before the bet starts you can do some analysis of which club you will choose.
So the point is, even though there are some types of gambling that can increase your chances of winning such as sports, self-control must still be applied, one of which you can apply budget limits, and always use money that you don't mind if it's lost, just be careful.