That is actually some amazing advice. Honestly I have to agree with everything you said.
Like you said, Jake shouldn't worry about gaining subscribers at the moment and instead focus on entertaining himself and his few subs. People always go into youtube thinking they will get big but that is the wrong mindset. The more you focus on your statistics at the start of a youtube career, the more depressed you feel about it and the more want to stop. Everyone starts out small and struggles to get a few subs and view, which is why you should go into it purely for entertaining yourself and not for getting big. After time people will come if they enjoy your content.