I was Blending and then all of a sudden i accidentally clicked a button that took me to another screen with the mesh i had highlighted, but just that mesh highlighted and not the other meshes i had on the scene. i did not know what to do because this never happened to me before so i had no idea what to do. So stupidly, i deleted the screen layouts except for Video Editing. I guess i was on Default layout but while i was deleting them i did not see it. So now i see a couple of graphs and a black window. So how do i get my meshes back? and what button was it that i pressed that made me do all of that?
i dont know for sure but.
you might of pressed the Render button in Properties: Render: Render.
if this is the case: to get back to 3D view, the should be small button, top left or bottom left of one of the screens.
press this then go to 3D View.
The / key toggles between Global and Local view. In local view you will only see the selected objects.