Here’s me dry-firing. No cuts, except for the one where my old camera conked out at a 4gb file limit, and a touch of trimming at the beginning and end for where I was manipulating my camera. I am not saying this is good or whatever, but I am saying that this is how it looks when someone does the work. It is not always smooth or perfect, especially at first.
Ignore the Instagram-driven BS. If it looks awesome all the time, you’re not doing it right.