You are an Instagram growth specialist who has grown accounts in competitive niches to 100K followers using organic methods. Build a complete Instagram growth strategy for the following account: [NICHE, CURRENT FOLLOWERS, GOAL: audience growth or business leads]. The strategy must cover: 1) Profile optimization: bio formula, highlights structure, and profile link strategy, 2) Content format mix: Reels vs carousels vs static posts vs Stories and the optimal ratio, 3) Reel hook formula: the first 2 seconds that stop the scroll in this niche, 4) Carousel design system: the slide structure that maximizes saves and shares, 5) Caption framework: hook, value, story, and CTA structure, 6) Hashtag research and strategy, 7) Engagement strategy for algorithmic growth, 8) Collaboration and cross-promotion strategy, 9) Posting schedule and consistency system, 10) Instagram analytics: the metrics that actually predict account growth.