For this video, a lot of the emphasis was based on the subtitles. I watched this
video from Finzar to learn how to subtitle properly. The main thing with editing on YouTube is trying things and if it doesn't work, look up a tutorial.
Finzar has a great YouTube channel that host many great editing tutorilas for free! Another thing people should be conscious of is viewer retention. as of writing this, the retention of this escape room video is an average of 36%, or 4 minutes and 37 seconds with 48% of viewers watching the whole video (this data can be found in the overview section of the video on YouTube Studio). Videos need to be quick paced and have very little dead air. If you are going for a longer video e.g. a video essay (or a Dark Souls lore video) you will want to have information being presented all the tme, except if you are showing a cutscene or animation about your subject. The main goal is to keep the viewers interest.