It all starts with small amount of losses until it grows, until the emotion comes in and control is gone. Until you can no longer feel of what you are before because what's important to you is to win back your money. That's why you become quick to anger, hard headed and you listen to nobody. That is near to the utmost bad effect to a gambler. If by simply talking to you, you're no longer chill and you get easily mad by few talks. You better sign up for an expert that will assess your behavior because you might be having a behavioral problem that's very common to gamblers.