Bizarre. Do another terminal search, this time for the Mods folder:
Open Terminal and copy and paste the following command then hit Enter/Return:
find / -type d -name "*Mods*" 2>/dev/null
Copy and paste the results in a post here.
That you have no idea what the EXTERNAL 1 drive is indicates that something is not quite right with the file system on your Mac, maybe there is some kind of corruption which is resulting in these issues?
@Bluebellflora This is what my mods folder looks like- I guess the others are CC, but just for reference.
Also- thank you so much for helping me it is extremely appreciated.
