Here the true problem is human psychology. Casinos are meant to set off your feelings and drive you to pursue that winning rush. One might easily become captivated in the moment and start basing decisions on hope rather than reason. Most folks go wrong here.
Assuming you can "manage" your money in such surroundings is like believing you can outsmart a chess grandmaster after reading few web articles. Understanding the game is more important than imposing restrictions. The fact is also the game is rigged. Making money is the business of casinos; they are not giving it away.
Saying that playing games always results in success over losses is simply flatly untrue Its comparable to declaring you will always be a stock market winner. Yes, you may have some good days, but over time the chances are stacked against you.
Businesses all over the world are taking advantage of our psychology to try to make us spend more than what we can afford and to buy only from them, this is clearly a manipulation tactic but one that is very effective, as most people are unable to see the manipulation going on and think it is on their best interests to keep behaving in the exact same way, so suddenly they wake up one day and find out all what they have lost and they do not understand how they could get to that point.