I just look at my bet history after few bets and also keep an eye on the wallet balance, if it reaches below 50% of my initial amount I had at the start then its the time to break, that is what I actually do while playing dice, slots or any other casino game and about sport betting just go with minimum amount with no expectations on rare occasion just to check my instinct is right or not.
You do well, but not all of them can be like you who in gambling can easily control financial conditions. In my opinion, people only play with their limits who are able to lose but on the other hand, people who bet and have more money, actually use it very irregularly.