Setting limits and maintaining control in gambling is the most important thing, there are many gamblers who get addicted to gambling more deeply after losing continuously, and then their attitude is like, "I will not stop until I recover all my losses", and then they keep gambling with more money. I cannot understand how they can consider themselves so lucky, even after losing continuously. In fact, they lose everything because of this kind of attitude. That is why gamblers have to be responsible from the beginning, and accept gambling as entertainment only. Without self-control, gambling will take everything from you and make you destitute.
Many of them are addicted to gambling because they lose self-control when gambling, making their views different on gambling which may have initially been just for fun but when they lose self-control they have the perception that they will be able to get a big win so they continue to gamble or as you said.
People who pursue victory in gambling have their own perspective, sometimes they are too confident in pursuing victory and this is what becomes a problem. For people who have self-control they will have the right view of gambling as well as the actions they take they will not extend their gambling session when they have experienced one defeat.
Some people become hooked to gambling because they chase their losses, believing that the more they lose, the more confident they will be in the following game to cash out and recover their losses. When you are losing a lot of money, take a break for two weeks and try again the following time, using another forecast to see if he can favor you or not. Even if you pay and make a profit, take a one-week break before staking again. since that's how I used to gamble; once I pay out, I don't wager the next day since I'm likely to lose. So I usually give gambling a day to play, so that someone won't come and fall on it and be addicted to it. Because is very wrong if you have be addicted to gambling, you won't get better thing to do with your funds anytime your mind will be on gambling and be waiting for weekends to come so that you can bet on some clubs that will in. I usually prefer to be betting on ucl competition, because that is the competition usually favour me most because all the best team usually perform well and you will be getting money if you can predict on ucl very well, more then other competitions.
No gamblers keeps losing money and be happy or even have that confident which you said, like I know when a gambler gambles and incurred loses they began to have this doubt within them to quit or continue, and when they continue gambling they would keep losing at this point they wouldn't want to quit again because they would definitely sum up what they have lose for long and backing out wouldn't be that easily for them, therefore they would need to continue gambling with the hope that there could be positive results while gambling instead continue losing at this point we can call it addiction.