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.
Making cash on gambling for sure is probably not going to be a good idea as a main goal but for sure it is a part of it since you couldn't even call it gambling if it doesnt involve money at all, so money is always going to be a part of it, still gambling doesnt mean it's going to be a good habit and gambling might have negative effects of gamblers like addiction, frustration, depression, etc.
It's not practically a bad thing to gamble at all but the thing is if it is going to be excessive it could easily turn out to be an addiction in the end, as long as you are going to limit and gamble only a control amount it's not going to be a problem at all, like for example only 5% up to 10% of your income you're going to use it to gambling, I mean even if you lose all of that money it's not really going to be a problem because you could easily recover that amount like on your next salary.
It is true that most of the games are dependable on your luck but there are for sure some tricks, patterns, and analyses that is going to work, considering there are so many games that you could play and gamble, like for example on sports betting, if you're just gonna depend on luck the chances of winning for sure if going to be low, but if you know every player know which team has a higher chance of winning your analysis could easily be a good head of increasing your chances of winning.