That is true, I was watching a streamers video yesterday night in my fight to stay out of gambling by watching out people suffer from it and the people there despite being well known ones they lost like 76.000 dollars in just 35 minutes and they knew that they did a stupid thing yet it was stronger than them as they were saying in the video but it showed what you say here that people do not let go easily the big amounts of money they had lost. They kept talking like 15 minutes after about what they had done and how they were not careful to what they were doing, they were analyzing the loss and they were very repented about what they had done, so with this I want no one can easily let go huge amounts of money lost.
Losing big money is always very difficult, and the first thing a player should do before he starts playing is to set limits that cannot be violated under any circumstances. If it happens that during the game it is not possible to adhere to these limits, then the only right decision should be to stop playing, because there is no other solution. But if you are able to stick to the limits, then the next step should be to find a limit that is not difficult to lose and stick to it.