I found that the biggest difference between grid/DCA and a single trade is not profit, but sleep.

With a single trade, it looks okay during the day, but at night my mind automatically replay: what if I suddenly get stopped out, correlations collapse together, health drops... I just can't handle this kind of obsessive-compulsive disorder.
Grid or DCA is like splitting emotions apart; position size, re-entry rhythm, stop-loss levels are all fixed, at most just watching volatility and collateral to avoid mutual drag.
Recently, the group has been discussing stablecoin regulation, reserve audits, and rumors of "de-pegging."
After reading, I lowered my stablecoin allocation a bit, kept more margin, anyway I don’t gamble on news, just leave it at that.