As a new world builder, I appreciate this forum so very much. But I am having trouble getting the steps before mapping out the world down, namely building the world and world information.

This is to build the world for the campaign I have been working on for a long time. I have vague ideas for continents, areas, culture inspirations, and possibly a cosmology. I am just having trouble fleshing these ideas out, and transferring it to an atlas.

Are there any good resources for help with building the world in the first place? I have been trying notebook.ai and that is helping, but some articles, blogs, etc would be awesome.