Better to stop trading if we are emotion, it is not a proper situation to trade. I personally need to have a calm mind whenever I want to trade. Emotion may lead us to do something carelessly. It is too risky, trading isn't a safe place for emotional person. So, it is the right way that you turn of the computer whenver you feel emotionally.
I think good ideas better to stop trading awhile when loss controlling emotion, some people can't controlling their emotion on loss position trading and keep try for entry without right research or analyze which one worth coins for trading. Ever in this position and loss emotion controlling give impact get loss for next entry. Better don't push our self in emotion when getting loss in trading and keep calm awhile waiting right time for back to trading. Its make the second mistake when losing controlling emotion but keep push for entry or trading when our minds full by emotion.