I extruded plane mesh until this point, then I deleted some vertices and reconnected them again into faces. But now the new faces on the left are not meshes anymore (correct me if I’m wrong), how do I make them like other faces?
I’m not a beginner but I really don’t understand your problem. Formulate it in a different way if you want my help.
I think you want to go back into face select mode, as opposed to vertex select mode? there’s a set of buttons on the main header of your 3D window ( at the bottom of your 3D window ). they have a cube icon indicating which mode they are for. pressing these toggles between the various select modes ( face, edge, and vertex ).