What tutorials/books do you recommend to be able to do a prototype similar to Pillars of Eternity?

I started to learn the basics of Unity, C# in Visual Studio, Blender, following video tutorials mostly. I also plan to read Mastering Unity Scripting, as soon as I feel confident I will understand what's written there.

But what courses/ books would you recommend for a Pillars of Eternity/BG type game or even like Wasteland 2?

Don't worry if you think they are too advanced for me, even if they are, I'll just save the links to use later, when I am able.

Thanks,
Dreamer