My Mind, The Camera and Lack of Productivity

I am in the process of building an online course which entails me making videos of myself. When it comes to being on video, I am paralyzed and don’t know what to say, it just feels like I am not getting my point across or I look/sound silly, unlike when I speak about my topic naturally (authentically) with no camera. So I keep making videos and just end up deleting them. I keep thinking “(B- work) just make a video and just get upload it, done ” But it doesn’t happen. How do I get to figure out if it is the “camera” or if it’s something else deeper than being on camera? I know being on camera is hard at first (or always) for many people. Where do I break this cycle?