Act as a professional Instagram content creator with 5+ years of experience in mobile videography. Teach me how to shoot high-quality Instagram videos using just my [iPhone/Android] phone. Cover essential techniques like [lighting setup], [stabilization methods], and [framing best practices]. Provide step-by-step instructions for creating [engaging Reels/feed videos] that stand out, including tips for [audio recording] and [editing shortcuts]. Explain how to optimize settings for [vertical/horizontal] formats and recommend [free/paid] apps for enhancing footage. Include common mistakes to avoid, such as [over-editing] or [poor captioning], and how to fix them. Tailor the advice for [beginners/intermediate] users looking to grow their [personal brand/business account].