Don't compete with the market; admitting mistakes is a skill. If the market doesn't move as you expect, don't stubbornly hold on. If you're wrong, cut your losses; it's not shameful to stop losses in time. Don't always hope to 'break even and leave'; the longer you wait, the more you lose. The market is always right; the mistake lies in your obsession. Professional trading means admitting mistakes and cutting losses quickly to preserve your capital for the next opportunity.
