^ Probably journaling that he meant is that to have a gameplan, it is the way to monitor the market and record the previous history that will probably repeat itself in the future. If that is what OP means, it really has great help to him, and stick to the plan will most likely always get a profit because you can able to control your emotion. If you have a plan you will have an idea of when the exit point, when to take profit, and when you leave the market. There are too many advantages to be made if you have journaling everything the decision you have.