Emotion is your enemy here and conquering that is a brave response. Lets admit that not all can do this but thats the reality of trading and losses. If you succumb to that and it will eat you alive.
I do also understand that emotion can lead us into losses when we jump into it with out getting the proper timing but on some times it pays through too when the emotion helps a trader to exit a pending losing market. As a trader we can't avoid the uncertainty being created by our emotions but greatly we need to have better use of our knowledge in the market if we have such understanding, the emotion influence will be reduced.