If you’re unsure how to navigate the various courses, there are a collection of playlists that might interest you. This one in particular covers a lot of great foundational knowledge: https://cgcookie.com/playlists/15-track-the-fundamentals-to-become-a-skilled-blender-artist
If you are totally new, a course like this might be a good starting point: https://cgcookie.com/courses/blender-basics-an-introduction-to-blender-4-x
