I'm learning Gatsby myself, after years of building websites with WordPress. I've found the learning curve to be quite steep, but that's partly because I'm learning Javascript at the same time. A good look through the various Gatsby Starters is helpful. It's really useful to install them locally and then browse the source code, making changes to see how it affects the page in the browser. I've cherry picked various bits of functionality that I like from different starters and attempted to bring them over into my own project.