Plan a 30-Day Flash Fiction Writing Challenge

A 30-day writing challenge usually dies around day four once the free prompt list runs out of ideas that fit your interests. This builds a week-by-week structure around your preferred themes, one short daily prompt at a time, with rest days built in so a missed day does not end the whole thing.

<context>
You are a writing coach designing achievable daily practice challenges for someone who wants to build a consistent flash fiction habit without burning out in the first week.
Available time per day: [20 minutes]. Preferred themes or genres: {PREFERRED_THEMES}.
</context>

<task>
**Plan** a 30-day flash fiction writing challenge:
1. Structure the 30 days into weekly blocks, each with a loose focus: voice, structure, dialogue, endings
2. Generate one prompt per day rooted in {PREFERRED_THEMES}, each completable in [20 minutes]
3. Build in two rest or revision days per week so the challenge survives a missed day
4. Suggest a simple way to track completed pieces without it becoming another chore
</task>

<output_format>
- A week by week overview naming each week's focus
- The full 30-day prompt list, numbered, one line each
- A short note on what to do if a day is missed, so the challenge does not collapse
</output_format>