They may have high hopes of winning the gambling game, but they should be able to see the reality because winning the gambling game is very difficult and even though they gamble every day, they will not always be able to win. There will be defeats that will come to them and take a lot of their money if they cannot control themselves well. And when they lose control of themselves in gambling, they will only destroy their lives so that it will be difficult to recover their lives again. It will also cause other problems where they will experience gambling addiction, which is also difficult to cure. That is the biggest impact that can be experienced by any gambler who loses control of themselves and there will be other impacts that they will feel. That's why people need to use gambling as entertainment so they don't exceed their limits in gambling.
However, you must always maintain self-awareness so you don't lose self-control when gambling. They really need to control themselves by limiting their gambling so that they don't exceed what they can afford because if they continue to gamble beyond their limits, they will only experience losing even more money. If they can reduce their gambling activities or even stop their gambling activities, that is the biggest blessing for them because they can avoid the problems that can arise from gambling excessively.
I believe that it’s left for an individual to decide what he/she wants for themselves, one can decide what he want for his life, it’s not new that gambling platforms strictly warn against under age gambling, for one to mere register to any gambling site that shows that he/she has agree to whatever the outcome gambling might bring and should bear the consequences of their actions. Also we have the freedom to choose which path we will like to follow, either the path of self-destruction or the other way around. People with gambling problems, can choose to do better for themselves self-awareness like you said is very paramount, know when to stop and withdraw. Better still learn when to go for breaks, stay away from gambling for a while no matter how well it’s going for you with that one can do without gambling.
It is very much important for one to cultivate these qualities; discipline and self awareness or better still stay away from gambling if he can’t keep up after all gambling is not the only thing that can save you. Gambling is mainly for the fun with a little bit of expectation. Basically emotions are bound to rise because you are actually staking you hard earn money and hoping to win so it naturally normal to feel some emotions while gambling, but it how we control our emotions that makes us discipline and responsible.