Exactly! you need to have that capability to control your emotions, as gambling always carries risk and if you don't know how to control then you'll suffer more loses, and for most of those who keep losing and become addicted they mostly blame the house there's some who pointing fingers to someone and some that accused the house that cheats on them as they are expecting to have a better result but at the end of the session they lose everything they deposit and regret such mistakes.
Actually everything has its own risks, including in gambling. Everyone knows that gambling never guarantees the win, it even spends a lot our money. If we have no control for our emotion, we may be influenced to spend all the money to chase the wins. Or we may be triggered to gamble as much as possible to recover the losses. This is totally wrong way in gambling, this will lead into an excessive gambling. The only way is to limit control our emotion by limiting the funds and the time to play gambling games. So, it is true that controlling emotion is very important in gambling.
Controlling emotion is the most important part of the gambling even in cryptocurrency trading. Both of high risky and more chances to lose your capital if you can't control your emotion, personally i am experienced a few big losses in the gambling even also in theke crypto trading, i bet with big amount in the wrong time, so i lost in the big game. Yeah, we shouldn’t bet with big capital because there no guarantee you will win or lose at end of the day.