Dealing with Losses.
Perfectionists are often motivated by avoidance. The need to avoid unpleasant emotional experiences. Traders who seek the perfect system are also likely to be motivated by the need to avoid unpleasant experiences.
1 = Avoid chasing perfect system that promises to eliminate losses.
2 = Don't equate losses with failure. In fact, complete elimination of losses should be seen as a failure you are likely to have eliminated most of your gains as a consequence
4 = Accept that small losses are an unavoidable part of trading and that you will regularly incur them. They are as much a part of trading as are profits.