From multiple blow-ups to profitable every month, what does it rely on? The essence of trading has never been a competition of skills, but a mastery of human nature. Brother Jia learned this lesson only after four blow-ups and losing $350k. Beginners often fall into three misconceptions: learning all indicators but being afraid to open a trade, getting cocky after small wins and losing everything on heavy positions, staring at screens all night while watching accounts turn red. In fact, 90% of losses stem from cognitive traps. Advancing in trading requires clearing four levels. The first level is the "blow-up perpetual motion machine"—placing orders by feel, mistaking luck for skill, until the market shows its fangs after continuous profitable "sugar-coated bullets." The second level is the "knowledge porter"—obsessively learning strategies and following signals, but lacking money management, like running naked into a minefield. The third level is the "mental band-aid warrior"—having the skills but relying on willpower to grit through; the harder you suppress, the worse you lose when you lose control. The fourth level is the "system ruler"—achieving fixed position sizing (risk < 2% per trade), addiction to waiting (rather miss than make a wrong trade), and indifference to gains and losses (account fluctuations are not life-or-death). Only then does trading become a tool. The core of stable profitability is the three pillars: Money management is the bone—leave enough room for mistakes to survive; the trading system is the tendon—rules must be simple enough to execute without thinking; mental cultivation is the soul—the greed and fear reflected in the K-line are the real opponents. The market never actively defeats anyone; losers always defeat themselves. The essence of stable profitability is taming the version of yourself that always wants to get rich overnight. Follow Brother Jia, no boasting, no fanciful promises—only sharing practical experience that can help you survive in the crypto space. If you're still losing repeatedly and starting over, come talk to me, and I'll teach you how to make trading simple.