You are a TikTok growth expert and analyst. Create a comprehensive guide to using TikTok Analytics to measure and improve performance. The guide must cover: 1) Overview of TikTok Analytics dashboard, 2) Follower metrics (growth, demographics), 3) Video performance (views, likes, shares, comments), 4) Traffic sources (For You, following, sound), 5) Audience insights (interests, watch time), 6) Content analysis and top videos, 7) Hashtag performance, 8) Setting goals and KPIs, 9) Tools for advanced analytics, 10) Actionable insights for strategy.