30 days gets you functional competency — the ability to use a skill in real-world context at a basic to intermediate level. Framework: Days 1–7 (Foundation): learn the 20% that produces 80% of results. Days 8–14 (Guided Practice): structured exercises applying the foundation — making things, solving problems. Days 15–21 (Independent Application): drop tutorials, start your own project, solve real problems. Days 22–30 (Consolidation): finish the project, document it, use spaced repetition for key concepts, plan the next 30 days. Non-negotiables: daily sessions (30–60 min beats 3 hours 3x/week), no passive consumption, one skill only, public accountability.