I work 8 hours, commute through Hanoi traffic, make dinner, and by 9 PM my brain is completely fried. I have one goal: learn Japanese. But every single night, my exhausted self chooses Netflix instead. Duolingo streaks didn't work. Pomodoro timers didn't work. Here's what I finally realized: the problem isn't focus. The problem is **decision fatigue**. I'm not too tired to study for 30 minutes. I'm too tired to decide *when*, *what*, *how*, and *where* I'll study. That one moment of cognitive friction—"What page should I open?"—is enough to make me opt out completely. Most productivity tools try to fix the wrong problem. They give you better focus tricks. But when you're running on empty, willpower doesn't matter. What matters is **eliminating the decision itself**. So I'm building the Commit & Execute System: a small tool that forces all evening decisions into a single 3-minute window—right after lunch, when I'm still fresh. By 9 PM, there's no choice left to make. Just execution.