Am not even a gambling just like you said but from my observation and numerous topics have come across on the forums, people keep illustrating and making emphasis on how they outline their gambling budget and I doubts if it can really be possible, because the casinos and other gambling platforms that are known got all it takes to keep you coming for more.
Bankroll management exist to counter the temptation from the casino games to play more outside your bankroll range.
I personally gamble only with fixed budget whenever I play and I rarely play beyond that balance since it’s already too much risk on my side.
Too much risk means I’m not having fun already on gambling and there’s no point to still play.