The bar is lower than you think

TL;DR: The efficient market hypothesis is a lie, there are no adults, you don't have to be as cool as the Very Cool People to contribute something, your comparative advantage tends to feel like just doing the obvious thing, and low hanging fruit is everywhere if you pay attention. The Very Cool People are anyways not so impossible to become; and perhaps most coolness is gated behind a self belief of having nothing to add. So put out into the world, worry less about whether people already know or find it boring. At worst you'll be slightly annoying.