New traders fuck this up almost every time.  They take a proven system and then have 6 or 7 losses and Freak out. 

Your test results told you it can have up to 10 losses in a row but you had to fuck with it and change the parameters……..WHY??? 

This is the essence of professional trading. Once you test your trading rules, you don’t screw with the rules because you tested the rules. You know what to expect.