If you break a discipline once, the next transgression becomes much easier.

First of all, most traders don't have a winning strategy. Second, even among those traders who do, many don't follow their strategy. Trading puts pressure on weaker human traits and seems to seek out each individual's Achilles' heel.

Whenever I take a position, I like to imagine what it would be like under the worst-case scenario. In doing so, I minimize the confusion if that situation actually develops. In my view, losses are a very important part of trading. When a loss happens, I believe in embracing it.

The critical ingredient is a maverick mind. Focus on trading vehicles, strategies and time horizons that suit your personality. In a nutshell, it all comes down to: Do your own thing (independence) and do the right thing (discipline).