What's the first most important thing to learn about Vim?

Thanks Chris. I get it. I’ll go over those videos shortly.

Perhaps the most frustrating aspect of Vim is moving around directories, creating subdirectories and getting to files at speed (perhaps because I am not used to thinking in Vim, I suppose. I’ve used Sublime a lot). And because of this and unfamiliarity with keystrokes, I get slow and frustrated, hence giving up on learning it and using it completely.

But, I shall go ahead and learn a few keystrokes per day and see how far it’ll get me ;).