There are many, many things in daily life that require hands and fingers to operate independently. Typing on a keyboard is a super-common example. Driving a car - manipulating steering, turn signals, foot pedals, heat/air conditioning, sound system, phone, mirrors, etc., etc., etc. - is another example.
In short, the human brain is capable of managing innumerable tasks simultaneously. It all begins with acquainting it with the necessary core concepts involved, then SLOWLY and METHODICALLY actualizing and practicing those concepts and methods using your hands, eyes and ears.
It might sound daunting and complicated, but it’s no more difficult than any number of things that you and other humans do, without thinking, daily.
Luckily for us who want to learn to play bass correctly and most efficiently, there is Josh and his amazingly thoughtful, thorough and gentle approach that turns total newbies into badasses.
Just start B2B over again with an open mind. Then absorb the admittedly simple steps Josh lays out in the first several lessons. Following that, work through the rest of the lessons to the best of your ability with the goal of being able to play at least the slow workouts. Faster workouts are worth bonus points, but they too will come, seemingly like magic.
But it’s not magic at all.
It’s working through a process musicians have learned from for hundreds of years.
Resolve to crawl, then walk, then run. When you do, you eventually WILL get where you want to be.
Same as it ever was.