But if you do that, you won't have the privilege of enjoying your gambling because you're spending your time worried at the back of your mind that you're losing this (what you could be losing at that session) much. For me, it's better off if you don't think of what you could lose and what you could win, focus on what matters at the moment which is the game that you're currently playing, you can't change the outcome if you think or worry about it, just do what you have to do and worry about the consequences later, the it's not called a hindsight if you do it along the way.
Managing the amount you want to risk to bet doesn't change anything, it's more like looking out for the amount you can afford to lose any of your games that you want to wager or bet on because your stake size doesn't determine if you are going to win or not and the amount you lose can't be recover that is why you must manage your risk, manage the money yiu can let go and make sure it's not a borrow funds so you don't have to run hecter for a way to pay back.
I fact, if you focus on how much you will lose, you stand a lot to gain. Imagine you have an option like today match where Manchester City against Nottingham and they gave you an option of 1.7 odds and that means that anything you stake on that game is will give you 70% of what you staked and you then focus on that percentage you will gain, you refuse to look at what if Manchester City lose because football can happen anytime and any team can lose. If you bet your house rent and refuse to think about the money used, you might regret later if Manchester City should have lost that match.