When we have, we want more, and when we have not, we want more. Greed can be caused by both success and failure. When we have some good trades we get in a mindset that the trend will go on forever so we do not get out of the market. We try to get that last pip, but it gets us. When we make a poor trade we try to make up for it and trade too much of our account and trade when the market is flat trying to make up for lost time and money. Multiple lots are traded when one would have been the better trade.
A trading plan with trading rules will help keep a balance between fear, when we lose and over-confidence when we win. First we need to get a direction, and develop habits of doing the right things at the right times. Waiting for the market to tell us when to trade can calm a trader and help to develop patience. Once a direction is set, work on the speed. We classify speed as working less and making more. Things to build up speed in trading will include practice, patience, following the rules, entering on good signals, using good money management practices, planning your trades, setting stop losses, and studying.
The market will give you a home run once in a while once you have learned and developed the skills to take the smaller trades when they are present. A lot of little trades on a regular basis will give you great returns. When the big trade comes along it is just a little frosting on the cake. Keep greed out by doing the basics on every trade and let the market tell you when to get in and out.