Have tried Mythic GME a few times in the past, still not super confident, been readed the magazines as well. This is the definitive Mythic GME experience. The variations books were okay, and the magazines are insightful and great for resources and tips, but this is what you'll really want for solo play.
I've been trying to use mythic more and experiment with new RPGs since 2e came out. Hopefully I'll be more confident moving on from the Ironsworn series now that I have more tools.
Overall, If you want resources/tools to use, a good GM emulator, tables for inspiration, or even Examples that clearly show how individual mechanics work. This is the book to get.