I play gambling when I'm bored and I want to have some fun, but I'm independent of this and I can stop at any time so as not to lose all means. Although sometimes I hope for a big win

It is just a hard problem also when you have won a bigger amount. It will be another gamble all over again.
You will not stop until you double that profit of what you have already won.
If it loses again you will be using the deposited money until you lose.
Happened to me always. I would rather win small where I can stop than win big to just gamble again.
Greed is the most infuencing factor that keeps gambler in the game for long and every winning pumps up this emotion. Like you said, the gambler will keep on coming back in search of more profits and this is the worst mistake in their lives. They end up losing all their wealth and few borrow money also. Gmablers must have a good control over their emotions and temptation.