Hi,
Is it normal for blender to give me a black face when I press F?
What in the worlds name were you making fellow blender user? Nevertheless you can probably need to go to edit mode of the object and and recalculate normals by pressing Ctrl+N.
Also looks like some overlapping faces. Check and delete duplicate faces
Post the .blend file,looks like a flat object.Duplicate faces might have been created which then caused flipped normals in some areas.