You're correct also why will you be thinking about losing when you know there's something called the power of mindset, if your mindset is always about lost, you'll lose and not win therefore to increase your chances of winning we have to be thinking positive all the time but as you're having a positive mindset, it shouldn't make you ignore the possibility that you can lose the money that you're staking therefore it shouldn't be a large amount that you can forget if you lost it.
We agree that optimism is necessary, even in gambling. It's just that, one must know the limits so as not to make something that becomes a blunder. optimism is good, at least to raise our self-confidence. especially, if we bet on sports betting. without optimism, doubt will only make us often lose direction in assessment, research, analysis and choosing bets. referring to one of the points you said, I agree that if we chase losses it will only bring other problems. for example, our emotions are uncontrollable and result in feelings of anger to always target winning to recover losses. however, it doesn't always have to be that specific. there are also some gamblers, who are lucky to recover their luck and even get fantastic wins. so, as you said, gambling is full of uncertainty. however, that uncertainty does not always result in something bad. well, this is what is unique about gambling. where we cannot predict with certainty every gambling session, even if someone has the knowledge resources related to gambling that someone is good at. this is easy to say, but difficult in practice. why, yeah, because it involves feelings, emotions and desires, apart from the idea of entertainment and having fun.
Focusing on negative isn't good energy so I won't advice gamblers to focus on how much he might lose but he should be aware of it and do things that'll make the lost less painful. Staking only smaller amounts is a good way to reduce the amount of money you are going to lose and also not to over gamble by betting on many games. Also not chasing our losses will help reduce how much we are going to lose.
Losing is a certain thing, and winning is something we look for and want in gambling. the point is, it is very important for both beginners and seasoned gamblers to be aware of the risks of gambling.