I agree…watch some videos to learn how “editing in a computer “works. Trying to follow along is tough with youtubers, as the software versions change too much. If you need to do a step by step, you may want to invest in some classes, or yes, the Blackmagic videos and book, are probably fairly up to date. Even at that, at some point with any instructional video i’ve ever gone through, you have to be able to realize that a version change has happened, and you will have to fish around to find the new equivalent item. Sounds like a pain, but fishing around is actually a good way to learn these interfaces, but yes, watch some videos to get the concepts down first, you will then find the step by step less necessary, as you will have a better understanding of what is about to happen.