Futuresnut
The mind acts (consciously or subconsciously) to protect us from pain and the threat of pain generates fear. If each trade presents an opportunity for us to inflict pain on ourselves by not wanting to take the loss then we set ourselves up to have fear cloud our judgement. As MD says, "The best traders aren't afraid." Unless the approach just isn't viable, the trader that can accept the risk on each and every opportunity that presents itself should find themselves in a profitable situation long-term.
So true.