Video creator AI

Hello, I'm a dietitian and I would like to share educational videos on my social media accounts. For example, I want to make videos about topics like "fish with high and low mercury levels" and post them on YouTube Shorts, Instagram Reels, and TikTok. I write the information and scripts myself based on my own knowledge, but I would like AI to create the voice-over and the video for me. In other words, I will provide the content, and AI will handle the res