What is the most common mistake in trading? Greed. Taking profits and running is the key to survival. Many people see a profitable trade but are reluctant to close the position, ultimately getting pushed back to the starting point — this is the cost of "what if."

Taking profits is not shameful. On the contrary, those who stubbornly hold on often end up out of the game. Make a profit and leave, find the next opportunity, and always stay in the game. This is the long-term stable strategy. Never let one act of greed ruin your entire trading plan.