This is probably the best course of action, plus, you can always search for topics from the textbook, and presumably find the most useful sources for your needs organically.
In my personal exp as a late-twenties self-learner: finding high-quality sources of information is simple, identifying best relevance and staying focused is not. Perfectionism over resources is a total disaster for productivity. (And very mediocre, very shiny resources are easy and mildly profitable to create, and are often more for the authors' benefit than for the public good.)
Good heuristics are a savior - search for talks from authors of textbooks and langs, subscribe to those high-quality conferences (I like PapersWeLove), mentally blacklist channels judiciously.
Honestly, it's hard to just learn from books. YouTube videos are that personal connect if you are a lone developer. It feels like you are working with whomever is in video
If possible you might consider looking for the personal connection in a more face-to-face setting, and choosing a broadcast learning medium that works best for you without that as a consideration (which may still be video for some people, but I'll echo the sentiment that books and textual stuff seems to work better and be faster in my experience.)
Even if you only study/work on your own, there are conferences, meetups, user groups, social/networking events, etc... That gives you the added bonus of being more than just a blip in the view count of the person you're learning from. Worst case, even if there aren't any in-person options in your area, try forums/chat rooms/etc... with a focus on your subject(s) of interest (especially if they're more learning focused ones rather than just social -- the communities around many of the MOOC and online bootcamp programs come to mind.)
In my personal exp as a late-twenties self-learner: finding high-quality sources of information is simple, identifying best relevance and staying focused is not. Perfectionism over resources is a total disaster for productivity. (And very mediocre, very shiny resources are easy and mildly profitable to create, and are often more for the authors' benefit than for the public good.)
Good heuristics are a savior - search for talks from authors of textbooks and langs, subscribe to those high-quality conferences (I like PapersWeLove), mentally blacklist channels judiciously.