Some players have their beliefs and they trust their skills, even if things don't go well the way they plan, they will continue to play, they can play high risk bets and never give up because they believe they will get more than what they have lost any day they win from the outcome because high risk game can change life for good when you win but that is not the best strategy for a gambler.
And being overconfident is also like a double edged sword that can hit you. Yes, there are experienced and exceptional gamblers but they can still experience these losses and their ego is being hit by that.
The moment that they lose control and trying to justify that they need some closure because it doesn't happen to them at most times, that's just another way to say that you won't be done until you chase your losses.
This is why with even the experience that many gamblers brag that they have, they still make loses which make everyone that is a gambler to be doing that under guesses and luck. Luck can make it looks like we are very experience and we know what we are doing as a gambler. Gambling requires so many skills but we have to know that we are humans and we are liable to make mistake whether we know or not. There is way things use to tell on gamblers to know that even with all our confidence we can still make great loses no matter who we are.