Self-sabotage occurs in trading in many instances:

1) When you know you should follow the ten tasks of trading, but you don’t.
2) When you know you need to determine if your system will really work, but you just trade it anyway.
3) When you know you should develop a business plan for your trading, but somehow that just seems like too much work.
4) When you know you need to put a stop loss order in on a trade, but you don’t.

Hmm, guilty as charged. 

I have yet to hear anyone say, “I don’t make money picking stocks – I make money by cutting my losses short and letting my profits run. And more importantly, I meet my investment objectives through the judicious use of position sizing.”So, less focus on the system – more focus on self and self discipline.