This is just the panic associated with talking to the whole world. Just get started. The more you practice and put out into the world, the more it will be something that comes naturally to you, and something that you don’t panic because of.
Notice that it is not just perfectionism that is making you hesitate here before putting out pillar content on YouTube or podcast. It’s talking to the whole world. It puts you under pressure and stress. The more videos or podcast episodes you make, the lesser that stress or pressure will be.