Actually everything has its own risks, including in gambling. Everyone knows that gambling never guarantees the win, it even spends a lot our money. If we have no control for our emotion, we may be influenced to spend all the money to chase the wins. Or we may be triggered to gamble as much as possible to recover the losses. This is totally wrong way in gambling, this will lead into an excessive gambling. The only way is to limit control our emotion by limiting the funds and the time to play gambling games. So, it is true that controlling emotion is very important in gambling.
Controlling one's emotions is what a gambler should even test and work on before embarking on gambling. After that, you move to training yourself to always keep to the amount you have set as a limit for gambling and the time frame to spend on each day you decide to gamble, because if someone doesn't have that control in them, even setting up rules and limits to keep them on track, they will always easily break that limit themselves; it won't stand for long, especially when they get emotionally attached to the game, either due to losing or winning.
It is very important for gamblers to control their emotions and control themselves. Otherwise, gambling will seem like a scam to us. If we cannot control ourselves, we will easily lose a lot of money in gambling. There is a possibility of winning money in gambling, but the possibility of losing money is more if we are not experienced enough. We must follow some rules. If we become addicted to gambling, we will definitely keep losing money unless we are very lucky.