I was scrolling through instagram and I came across this story
https://www.instagram.com/reel/DNqQIlNg99m/?igsh=cGJ5NGlveGY2ZzV3This is a story of a poor man who played a sport betting game with little money but the potential win was big according to the story he was gifted an opportunity to cash in on a good amount that to his financial status is more than good for him but he decided not to and ended up with nothing.
First thing I do after placing a bet is see my potential win as not mine, those figures written as your potential win are dream money it’s never yours I don’t care if your last game is Real Madrid against a team in the fourth division of Iran’s league.
The imagination of already seeing your potential win as true can make one forget their financial status as it did to the man in the story.
Your financial status is more essential than your potential win in deciding if you should cash out or not.
There is no bet in gambling that is 100% guaranteed to win, even if I saw a match like in your example, when Real will play against a weak team from the fourth division, I would think that there could be some kind of catch, and if I made a bet, then as small as always, I would definitely not increase the bet even if I thought that Real's victory in this match was almost guaranteed. When a player is more confident in some bets compared to others, this can play a cruel joke on him.