Both sides have their points: some don’t believe, and others do. We just need to respect each other and never say it’s impossible to be profitable in gambling, because if you think that way, maybe gambling isn’t for you.
I have seen threads talk about having faith and belief when you bet, and now you talk about the right mindset, which makes sense, but it is not all it takes to win. When gambling, you are left in the dark because the possibilities of winning are indeterminate, optimistic expectations can keep you enrolling your funds even when losses continue. Be positive when you bet, as well reserve a portion of your feelings to incur losses and move ahead, it doesn't get rosy all the time in gambling.
With the right mindset, you can develop the right strategy. If you see sports betting as a skill-based game but you’re not actually working to improve your skills, then your mindset is off. Having the right mindset doesn’t guarantee you’ll be profitable, but at least you’re on the right path, and who knows, over time, you might develop the skills you need to become profitable in the long run.
Even with strategies, a gambler is still prone to loss. That doesn't mean stopping to calculate hints before betting on an event, my whole content concerning sports betting has been together on prediction skills and luck. If your prediction skill is poor, keeping a positive mindset won't change the outcome. Gamblers need to agree on prospects compatible with their skill level and remove exaggeration of high profitability interest in mind.