Do you read "fiction" or "non fiction" or maybe "historical fiction"? When I was younger I read mostly fiction. Now I find myself drawn to non fiction and philosophy. BookBub lists thousands of kindle books from 99 cents to $2.99.
I progressed the same way. The only history I learned was from historical fiction like James Mitchener's Texas or Gary Jenning's Aztec. I think it was because there was meat on the bones of the story. These days I find there is more meat on the bones of philosophical books. My father used to call stories that were easy to digest - pap. I still like to read a pap story every now and then for a break from the heavy stuff. It's usually historical fiction about Shakespeare's England.