Post put up by mistake

This post was put up by mistake but i can’t find a way to delete it, does anyone know how to delete a post?

As author of a post you get an operation bar below your post. Extend the three spots …
Bildschirmfoto 2021-01-05 um 02.49.09

… and you’ll find the trash can on the fifth position
Bildschirmfoto 2021-01-05 um 02.44.29

I assume, that erases your post.