Look, the thing I personally follow is how much money I gained and how much money I lost while gambling. Because if someone does not calculate gambling, then he will not be able to gamble for a long time and will lose his money, so keeping a gambling account is very important. I bet fifty dollars, and if I earn 100 dollars from that, then I have fifty dollars of profit because the entire capital is now under my control.
I have 100 dollars in my wallet now, if I lose ten dollars or 20 dollars from that, then I will have a total of 80 dollars, I have lost 20 dollars. Because if I do not keep this account, I will not find out how much money I gained and how much money I lost later, so whatever money I have in my wallet is under my control.
It's not mandatory that everyone who gambles keeps records of their winnings and looses, now if you carefully look back at what has been recorded if one is keeping records of their wins and looses, the percentage of what has been loose is greater than what has been won, there is no way your winning percentage can be greater than looses percentage because majority of gamblers are always loosing and it doesn't favor the gamblers unlike the casinos owners which is believed that the platform is made to the advantages of the casinos more than the gamblers.
I personally don't keep records of what I lost because I once did and the results I saw was so disturbing to the heart so since then I stopped and have my small budget which I play with and once I exhaust it I take a break from gambling until I fund it and start playing again.