Yeah, emotions always come up, especially in gambling or betting. Some people can control them, but many can't. If you let emotions take over, you might make bad decisions and end up losing more. The key is discipline knowing when to stop and not chasing losses. Staying calm helps you think clearly and make better choices. It's not easy, but if you learn to manage your emotions, you'll have a better experience, whether in gambling or life in general.
There are gamblers that are emotional, and we know how emotions destroy a gambler.
An emotional gambler who lost huge amounts of money in gambling might make bad decisions for some reasons. Maybe he wants to recover his money back hence, borrowing or doing everything just to have money. Again, his decisions are driven by his emotions particularly his desire to recover his money.
Staying calm especially when you're losing is very hard, and it will take time, and experience to learn it if you're a gambler. Being discipline and learning how to control yourself would also take time to learn as well, and the more time you spend in gambling, the higher chances you learn it as well. Learning how to control your emotions will take you a long way especially in gambling, and as for me, I think I really learned it pretty well because I don't feel any negative thing whenever I lose my money gambling.