We never get satisfied as well as doesn't want to lose. If we were satisfied then surely majority of the users never want to feel sad gambling. Because, majority of the gamblers make good profit and further the greed only makes them lose everything. Even today I had such a feeling, because I had doubled the capital and I didn't stopped. What happens further, lost everything in just four rolls which shows that gambling is all about limiting ourselves on profit as well as on lose.
I agree if we want to last longer in gambling while still having sanity, we need to limit ourselves. After all self-control is the pill against gambling addiction. Anyway, I also experience the same thing, initially winning but ending up losing my bankroll. It happened recently, I deposited around $30 in a casino, and I made it grow to $200+, sadly greed hits me and wanting to win more so I raise my wagering bet which ends up in faster bankroll depletion. Although my gambling session that day ends up losing my bankroll, I didn't feel any regret even though I lost that $200+ which should have been a pure profit if I withdraw since I always consider my session as a lost, it will only be a bonus if I happen to withdraw a larger amount. With this kind of thinking, I gamble with less pressure and frustration.