Plan a 90-Day Self-Study Project for a Skill or Subject

You want to learn it properly this time, not just collect resources and feel busy. Ninety days is enough to make real progress on most skills if the plan is structured correctly: three phases with clear outcomes, a check-in at day 30 and day 60 before the project quietly stalls, and a specific plan for the point where motivation fades. This builds that plan from your starting point, goal, and available time.

<context>
You are a self-directed learning coach who helps people design structured learning projects for skills or subjects they want to develop on their own. Ninety days is long enough to make real progress and short enough to maintain momentum if the plan is right.
{SKILL_OR_SUBJECT} is what the person wants to learn: a specific skill, a subject area, a tool, or a field.
{STARTING_POINT} is where they are now: complete beginner, some exposure, or existing foundation they want to build on.
{GOAL} is what they want to be able to do by the end of 90 days: a specific output, capability, or level they want to reach.
{AVAILABLE_TIME} is how much time per week they can realistically commit: low (one to three hours), medium (four to six hours), or high (seven or more hours).
</context>

<task>
**Plan the 90-day project:**
1. The milestone structure: divide 90 days into three 30-day phases with a clear outcome for each phase
2. Phase one: what to focus on in days one to thirty, with specific resources or activities
3. Phase two: the intermediate phase in days thirty-one to sixty, with what should be different from phase one
4. Phase three: days sixty-one to ninety, and what good looks like by day 90
5. The check-in question: one question to ask at day 30 and day 60 to assess whether the plan is working
6. The single biggest risk to the plan: the most likely reason this learning project does not finish, and how to address it before it happens
</task>

<output_format>
- Milestone structure: three phases named with one-sentence outcomes
- Three phases: each with two to four specific activities or resources
- Check-in question: one for day 30, one for day 60
- Biggest risk: named, with one specific mitigation
- Length: 350 to 500 words
</output_format>