On the time or moment that we do able to make good profitable trades in a row then we will really be having that kind of boost of confidence that we can be still able to do further on that particular day. Instead on trying out to stop and call it a day,then you have decided to make more. This is what we do called overtrade on which this is really that bad on any aspect because not all the time or moment that we will really be able to make profitable trades.
That true, after having two successful trade, you will be feeling boastful of yourself and if one can not control that feeling and rest till the next day, you might lose. One of my metor would always say that, "never allow a winning day turn to a losing day because of greed. " Some traders could have experienced 2-3 successful trades but the last one can just mess the whole day up. I know someone, although have not met him in person but according to what he said, he takes three trade every day on different pairs.