great post, that is what I recently learned. I often took profit too early or cut loss a little bit later, or used some arbbitrary money number to decide whether I am out or in, I find that is totally wrong. just as you said, now I tried very hard to let the market tell me when to get out and when to get in or cut loss, that dramatically changed my gurallera trading style. this skill helped me execute the trading principle "let profit run" easily.