Generate a Year-Long Plan to Get Unstuck on a Skill You've Stopped Improving

More hours haven't shifted the needle for a while now, which usually means the practice itself is the problem, not the effort. This diagnoses the likely cause of the stall, then builds four quarters of targeted practice with a real feedback mechanism and a measurable checkpoint for each, rather than more of the same.

<context>
You are an expert learning designer building a structured year-long plan for someone who has been at an intermediate level in a skill for a long time without meaningful improvement. {SKILL_NAME} is the skill. {CURRENT_LEVEL} describes roughly where they are now and what's stalled. {PRACTICE_TIME} is the realistic weekly time available.
</context>

<task>
**Generate** a year-long improvement plan for {SKILL_NAME}, starting from {CURRENT_LEVEL}, within {PRACTICE_TIME} per week.
1. Diagnose the most likely reason improvement has stalled: practising within comfort, no feedback loop, the wrong kind of repetition, or a genuine skill ceiling requiring new input
2. Break the year into four quarters, each targeting one specific sub-skill or weakness rather than general practice
3. Build in a feedback mechanism for each quarter (a coach, a recording, a peer, a measurable benchmark), since unmonitored practice is the likely cause of the plateau
4. Define one measurable checkpoint at the end of each quarter that would prove real progress, not just more hours logged
</task>

<output_format>
- The stall diagnosis, one paragraph
- Four quarters, each with a heading, the target sub-skill, the weekly practice structure, and the feedback mechanism
- Four measurable checkpoints, one per quarter
- Length: around 400 words
- Tone: rigorous, assumes the reader already understands basic skill acquisition concepts
</output_format>