Three key characteristics of a successful trader:
* Intelligence
Before you invest, invest in your education. If you don't understand it, don't do it.

* Emotional stability
How do you react under pressure? Being not attached to the outcome is very important. Journal writing and documenting each trade can improve emotional stability.

* Discipline
A trader's job is to execute his trading plan flawlessly. Focus on executing the plan, not on making money. It is the trading plan's job to make money.