The post is kind of hard to understand, at least the 1st sentence. I assume you're talking about only gambling with an amount you can afford to lose? If betting becomes too stressful for you, take a break. Sports will always be there so it's not like you have to stay away forever, just take a break until you can mentally handle it again.
Stopping and resting for a while will give the mind more peace of mind, I experienced it myself when losing a game or a bet.
made me stressed enough to break out a cold sweat because I was too nervous about losing even though it was a little money.
Mentally such a game is very annoying leaving me unsettled and regretting also with some losing games and bets that don't get any results.
But looking at the people who bet without stopping as if they have more money, maybe they're mentally trained, or they're just greedy and can't control themselves?