In the world of trading, most people spend their entire lives studying technical indicators, chasing market signals, and predicting price trends, yet they overlook the core factor that determines the length and height of their trading careers—position management. Technical skills decide whether you can seize opportunities; mindset determines whether you can hold onto profits. However, position management is the fundamental reason you survive and succeed in the market, and it is also the dividing line between a speculator and a trader. The market is never short of opportunities; what’s lacking is the capital to survive. It’s not that the technology is inadequate or that judgments are wrong, but that uncontrolled positions drag traders into an irretrievable abyss. Position management has never been simply about “how much to buy,” but a comprehensive risk control system throughout the entire trading process—using rules to restrain greed and rationality to combat impulsiveness.