video editing or film editing , can be a major in collages can take 3 ~5 years , and many people said the academy education editing one may have a lot of theories but not much real world practice skills to made theories into finish film/video , and others may have a lot software practice skills to made some fancy dazzled cut , but without theories , it not a good storytelling to made a impact into audience minds.
so it a kind of lift time learning process and practice skills , really not easy for someone don't have much time to diving to it .
to made a basic good video . at least need 3 cam set up , one wide shoot for over all pictures, one mid shoot for focus talking, and one close up ( changed angel many time ) to show what happens in you hand , then there are lighting and mic recording , which can both be a different profession to made the whole video good or dead , that already a lot work and planning and quite expensive equipment before you even save all you raw footage in computer to start editing. then there are Color Correction, different cam RAW formats................