Do you have the Ability to Ruthlessly Cut Your Loss?

There are few large losing trades that I did not cut, and it just too painful to watch. I know the drill, let your profit run and cut short your loss, BUT..for me it's easier to say than to do it. Luckily, I am also lucky enough to make up from other trades, which at the end left me with no loss, but also not too much of a gain or profit. Things have to change.
According to Mark Douglas, the pain of losing money (by cutting short your loss) is intensify by the  fact that you are making a mistake.