if i were doing that kind of thing (and have as long of videos as you, considering if i'm remembering correctly that you have reality videos that can be hours long), i'd kind of skip around the videos trying to find what is good enough to go into the final versions. if that makes sense.
yes. when originally going through in 2016 from the beginning (and making the almost the entire 2010-2016 catag), i felt obsessively the need to get to every file, i had up to triple speed playback (adjustable as listening, to catch whatever), and skipping over blank spaces. got pretty good at it, but still it was taking multiple weeks just to get throught the material and bookmark. weeks and months were flying by during this process. so eventually probably around when i got to the 2014 videos (that would be sometime in april 2016 i guesss, having started the project in early feb 2016) i made the decision to start severely skipping files. just sort of going 10 days apart maybe, and clicking into them. Also sometimes deliberately searching for specific important points. this is where it can be an advantage to not do the editing until years later, because then you know what turned out to have future significance and you can assemble more rewarding plot points