The essence why we trade is to make profit through taking and in trading the outcome we get is either lost or gain, but some people have taking trading to make profits as a do or die affairs, if they don't get exactly the profits they want, they would want to continue to get what they have targeted as profits. A mindset like this can lead to emotional feelings which can never be helpful to trading , people should learn to accept their lose and learn more to know what could be the cause for their failure in trading to get profits, than just trading continuously in lose without getting a good knowledge for better outcomes.
Indeed, many traders cannot control their emotions when they are too focused on profits and do not want to accept the losses they have experienced. They think they have to trade again immediately to return the money they have lost due to losses. In fact, it would be better if after experiencing a loss we had to take a break to calm our minds and then start to re-formulate our trading strategy when our minds are calm. We really have to learn to accept defeat and also have to learn from defeat. Usually emotions cannot be controlled in trading due to a trader's lack of insight and experience.