I feel like a robot

I can respond/react to what people are saying, but I can barely offer and say smth myself. I can even barely talk. I can just go all day without saying a word, and I’ll be fine, but I feel like I have to socialize because I’ll end up being an outcast if I don’t. It’s just so low-key annoying, when I’m with someone, and I just have a bunch or variants of what I should say, and then I say smth, and well mission accomplished I go quiet for another eternity. Idk. I can freely talk on a certain topic like a certain game or manga or whatever. But other people might not have the same interests, so what tf am I supposed to talk about? And what’s the purpose of talking at all man…