Difficulty finding files on Hard Drive

The Folder structure as LrC is showing. What folder/drive is above that  Done folder? And why

the ? marks.

But I just realized I messed up all the locations of my files and I cannot find them on my hard drive and I am not sure where to look for them. Any help would be appreciated.

Explain this in more detail. What do you see that is "messed up"? Do the photos in the Library Module have exclamation point icons as shown in Figure 2 here?

After I am done with the photos, I will put them into a folder called 'Done', so I can still keep on Lightroom but for it not to feel cluttered.

Explain this in more detail too ... HOW do you put them into a folder called "Done"? Please tell us step-by-step. Are you doing this in LrC, or in Mac Finder?

I strongly suggest you stop using this "Done" folder. To indicate the work is done, leave the photos where they are and assign a Red color label to these photos (or green or blue or whatever you'd like). I also suggest you use keywords instead of these folder names to identify the people in the photos.