Most of the people who lose emotionally in gambling are because they can't control their feelings so they can't think properly about what they are doing because they are too carried away by their emotions.
Controlling your emotions is important when you gamble, you can set a budget to control yourself so that when you lose you won't feel upset or anything else because that loss is budgeted so you don't have to chase your losses. If you often lose gambling, you should stop, you know when to stop gambling. You must also have self-discipline because it is also one of the most important things when you gamble.
In support of what you have added, controlling emotions will not make you win because there is no formula for winning in gambling due to the unpredictable nature of gambling. The outcome of most gambling activities is determined by chance such as in casino games like slots or roulette. Even skilled games like poker involve luck and this cannot be fully controlled. However, controlling emotions can prevent a gambler from losing more than necessary.
The importance of controlling emotions lies in the fact that when you can control your emotions, it is easier to stop or continue playing when it's necessary to avoid irreparable losses. Controlling emotions requires discipline, self-awareness, and the ability to stay calm under pressure. By regulating emotions, gamblers may be able to make more rational decisions based on probabilities and strategic thinking rather than being swayed by momentary feelings.