Thanks for the info. I think creating graphics is my biggest concern. I've noticed many novels share assests for the background. I don't want to create character models from scratch because I feel like it be absolutely terrible at it. Are there websites where they offer free or cheap character models that I can use and animate? Or do I actually have to use Blender and create from scratch?
That's one of them subquestions ;-)
My advice would be, look at the games you like and what tools they used, as some give that information in their profile or in the more information box of the games. And then start from there with the usual internet searching. Or even the forum here. There is also an asset category besides the games category on itch. And you can be sure there is a ton of tutorials on youtube, if you wanna do it yourself.
There are lots of free resources out there that artists willingly share and only ask for attribution (or not if it is CC0). There are also free character creators, basically like a paper-doll thing where you choose a base and then costume with premade pieces.
Or if you want to steal from artists without consent then go for AI <3