Yes, self-control is very important in holding back emotional feelings when we experience defeat if we cannot control ourselves then new problems will arise that we should not have. Feelings of emotion when losing are indeed natural and appear suddenly to gamblers, yes, it could be because they do not understand and are not ready to accept defeat just like that, especially if the gambler really expects a big win there, then his emotions cannot be held back easily.
That is why we must learn about self control to prevents the bad thing that can occurs to use when we playing gambling. We can also handle our emotion not to becomes high because we will realizes if our emotion start to increase and will stops from playing gambling immediately. We will not risks ourselves by keep playing gambling when our emotion start increase because we know that can makes us lose control. Feelings of emotion when losing will increase but if we can handle ourselves, we will not gets any problem because we know how to stops that and still control ourselves. We must be wise using gambling as a way to have fun and understand how to manage our emotion especially we will see losing many times so we know how to prevents from becoming emotional.