It's always like a magic when you win your bet by hair because you have already given up on the game. I do appreciate this kind of winning more and I will know that luck gave me such win. Unlike, winning with a wider margin that will make you feel that, you are a genius.
Giving up the game because you are losing is not a wrong approach. Sometimes backing off is prevention of future losses. Hence never feel like defeating the casino is your goal because it can never be done without cheating the system.
If you are looking to make money from gambling you have to be careful enough to not fall prey of your emotions and gamble without restriction.
Hence winning by a small chance at the start or at the end, rarely matters - it is a win or a loss, just keep it to that to avoid mental stress.
If we keep losing, it is really wise to stop playing for a while. Because when we keep losing, many people cannot control themselves or start playing more aggressively and face big losses. So it is not at all wrong that we stop playing when we lose.
Yes, whenever we think about winning and losing again and again, we may be under mental stress and as a result we may take big wrong decisions. For example, many times it is seen that we get attracted to thinking about a thing again and again, even though our situation is not with us at that moment, we get up and do that thing again and again and face big losses.