Why 30 days works better than 2 or 4 weeks for most people
Thirty days sits in a sweet spot: fast enough to feel like real progress, slow enough that 20-25 hours a week is manageable alongside a job or other commitments. It's roughly three evenings plus a weekend day, every week, for a month — demanding but doable without burning out.
Compare that to a 2-week plan needing 60 hours a week, which very few people can sustain without cutting corners on the lesson-planning material that actually matters once you're teaching.
