> I wish I could will myself into one obsession or another.

I understand. Not sure if you’re in the same boat, but for me, it’s a combination of age, energy, time, and becoming jaded. I used to spend late night hours poking at new things to learn about new hobbies and the like. The older I get, the less time and energy I’m willing to excerpt. This has been great for my getting back to reading books, but it’s been a sinkhole for self-learning and new skill development. The dopamine is lacking.

Are you me? I feel like this 100% mirrors myself. I've been slowing down the learning, I have a list of things I need to get myself to learn but I just can't find the energy to poke and prod. But I have started reading more books again.