My DCA executes every 7 days without exception: 0.5 BTC at market open, 2 ETH at $2,100-2,300 range, 15 BNB if it dips below $610. I don't negotiate with emotion—the plan is the plan. When BTC hits $35k I add 1 full coin, when it's $55k I add 0.25. Discipline beats timing every single time.