Sit back and think very well, if there is a way to extract emotion from a human being it means the human won't have feelings anymore, isn't that what robots don't have? It means that person is dead, my point is we can't get rid of emotions, it's a sign of been alive, too much of everything is where things can go wrong
Yes we can't get can't rid of our emotions but we can control them. Fear and greed are both dangerous when trading but you can control them and use as a tool for your benefit.