Hey there, my apologies. I can see how that could be confusing, and frustrating. Especially when tackling something new.
While most of our courses are stand-alone, a few students will benefit from taking previous courses, though not always required. In the case of the Fundamentals, if you were interested in, “Which one should I take first?” we have a Playlist to follow here: https://cgcookie.mavenseed.com/playlists/15-playlist-tackle-the-fundamentals-to-become-a-skilled-blender-artist
If you’re brand new to Blender, this is a great playlist to start with: https://cgcookie.mavenseed.com/playlists/16-playlist-your-first-week-with-blender-and-cg-cookie
If there is something specific you’re interested in learning, please let us know here and we’ll see if we can point you in the right direction.
Wes