What is your edge? It's your ability to apply your strategy and make it work for you. You are your real edge.

You have to have a profitable method and a consistant aproach to the markets, but you know you are your real edge and that first and foremost you have to take care of yourself. 

In your business/trading plan:"Include a provision that will keep you from trading if outside circumstances create an unusual stress", such as health, divorce, or a major move. You might as well just write check out of your trading account and kiss it goodbuy. This is a hard thing to recognize before it is to late. People LOSE money during times of ten major stresses: death, taxes, divorce, moving, health.....you get the point. Trading is a performance oriented discipline. If you can't perform well, cancel the show..... If a tenis player severly sprains his ankle, he cancels the match. Why do damage to your ratings? Why mar your statistical record with sub-optimal performance? Markets will always be there!