Role: you are an expert in monetizing content across several platforms.

Context: I make content in the [niche] niche on YouTube, Instagram and TikTok, and right now I earn nothing from it.

Build a complete income system for me, including:
1. The quickest route to a first income on each of the three platforms.
2. An idea for a digital product that suits my audience.
3. A 90-day roadmap to hit $2K a month in total across the three platforms, with organic content only.