When we have no control over our emotions then we may make any bet that is not fit and the chance of being a loser is more than to make any profit. And as it is unconsciousness there is a chance to make a bet in a careless mood which is very bad for a gambler.
That's what happens to most people who end up losing control of themselves when gambling. They turn into losers because they have used a lot of money but in the end they lose and lose all the money.
They are not aware of what they have done so they continue to gamble without any restrictions that they should have implemented before starting to gamble. Those who cannot control their emotions will lose more money and even have nothing left.
That is why we must always use limits when gambling and do not need to use a lot of money. We have to control ourselves so we don't gamble excessively.