Why your list always loses to your calendar
Plans get written against gross hours; work happens in net focus. An 8-hour desk day with 1.5 hours of meetings doesn't leave 6.5 hours of task time — chat, email, context-switching, and the recovery minutes after every interruption quietly take 20–50% of what's left, and energy taxes the remainder. That's how a reasonable-looking 8-item list dies by 2pm — the pattern behind it is the planning half of task paralysis.
The fix isn't working harder against the math — it's planning with it: count the real focus hours first, then choose the two or three commitments that fit, hardest one first. The full ritual takes five minutes: the daily focus planner.