You seem a little dismayed with not achieving much with the Joe Hubbard course. First, I have to preface what I'm going to say by saying that I have mad respect for Joe Hubbard, he's an incredible bassist, and really, there's not much more needs to be said. But I think his courses are aimed at a fairly specific genre of music, and fairly specific skills. There are a lot of good, successful bassists out there who can't do the stuff that JH teaches, and that's OK, because they don't need to.
Not trying to talk you out of pursuing guitar - I love guitar as well. But more saying that a course like JH's shouldn't be some benchmark that determines if you're good enough on bass or not, because I don't think that's the case at all. You could reel off a who's who of bassists who can't touch JH, but are still incredibly influential musicians, because they use the bass to speak the music they want to speak.
I'm the same as you, always played both, and at present, same as you, I'm more focused on guitar. But I'll regularly pick up bass because it's what I feel at the moment.