Advice for a Socially Anxious Person Who Wants to Try Streaming?

Does anyone have any advice for a very socially anxious person who wants to try streaming? I've tried streaming but when there's no one watching, I can't think of anything to say. It's really awkward so I try narrating what I'm doing, but I can't be engaging like most professional streamers I see. Or even other beginner streamers. It's a hobby I really wanna pursue, and I want to get myself out there, but I just don't know how to do it. My mind just goes completely blank and I end up stopping the stream within the hour full of anxiety :/