I find that amassing books or tools easily becomes a surrogate for actually putting in the effort to learn about a subject or do a project. When something piques my interest, it's pretty easy to just go online and order some stuff and get the satisfaction of having done something without having to put in much effort.

Then once the thing arrives my attention has been directed somewhere else and I'm much less motivated to actually read or do anything with the thing, and it just goes on the pile.

At least for doing practical projects, I've found that poverty is much more conducive to getting things done. Having to make do with what's avilable, free or cheap, and not getting distracted by shopping for the perfect solution. Likewise, I find that some of the most creative people on YouTube tend to be either pretty young or extremely frugal.