I believe and try to do that : 1 - I never risk more than 10% of my trading capital in a single trade .
2 - I never trade against the trend.
3 - I'm avoiding to get in and out of the market too often.
4 - I reduce trading after the first loss and never increase it.
5 - I have my own disciplined, planned trading program.
6 - I'm Avoiding to take small profits and large losses.
7 - If my trade starts to go down in long period , I get out of the market and waiting for another opportunity.
I always repeat myself : Investment opportunity doesn't loose , but investors can lost.