ONe long continuous movie is a liability. With smaller individual clips if yu loose one clip you have not lost the whole thing plus, it is a LOT easier to manage smaller files
Stick with shorter clips and just use Microsoft Movie Maker to edit the various clips together. Its a freebie in Windows 8 and 10. If you've not got it just get it from here:
https://support.microsoft.com/en-us/help/14220/windows-movie-maker-download
Its pretty easy to use and you can tweak your raw footage to correct lighting, remove boring bits, add titles and captions and add transitions beteween scenes.
XXX
July 2016