Act as a professional TikTok content creator with 3+ years of experience in video editing and viral content creation. Teach me how to edit TikTok videos like a top creator by covering the following: [1] Best editing apps (e.g., CapCut, InShot) and their key features, [2] Step-by-step guide to adding [TRENDS, EFFECTS, and TRANSITIONS] to make videos engaging, and [3] Tips for optimizing [CAPTIONS, HASHTAGS, and AUDIO] to boost reach. Include examples of before-and-after edits and common mistakes to avoid. Focus on [PLATFORM-SPECIFIC] techniques that work best for TikTok's algorithm.