ego

*

trades positions that are too big for account balance

competes/ compares with friends /colleagues

cuts winners too soon to get good feeling, refuses to accept small losses

boasts of success at every opportunity

resists becoming conscious of right action to take

lacks will or discipline to properly prepare and execute

overrides necessary precautions, believing itself to be above rules that apply to others

uses the market as an opportunity to prove how clever it believes itself to be

engages in personal vendettas against particular stocks/ instruments

will always try and get what it wants irrespective of what action the market dictates

kills any "edge" because of its constant need to be right