Just a thought: is it practical to match the company time with some of your own time? e.g. two hours of company time plus two hours of your own time. The degree to which that sounds like a good idea might be a useful way of gaging your own interest in a particular method or course of study...material that is engaging enough to pursue outside of work is likely to be a good choice for you.
A second thought is to frame the project in calendar time. Two hours a week is a lot of hours over a year.
A third thought is to frame the project in workday time. A half hour a day, every work day is a steady discipline.
Finally, I'm biased toward beginning at the beginning because I often find that skipping the early basics based on what I know means I miss the author telling me which basics the author thinks are important (and since they're the expert, perhaps I ought to value their judgment a bit more than my own in that regard).
A second thought is to frame the project in calendar time. Two hours a week is a lot of hours over a year.
A third thought is to frame the project in workday time. A half hour a day, every work day is a steady discipline.
Finally, I'm biased toward beginning at the beginning because I often find that skipping the early basics based on what I know means I miss the author telling me which basics the author thinks are important (and since they're the expert, perhaps I ought to value their judgment a bit more than my own in that regard).
Good luck.