...and now it's tracked everything and I can't seem to untrack the files.
I've since deleted the repo in git as well as removed the remote from my local machine. I'm not sure how to safely proceed at this point. When I'm on my desktop and type git status, all contents are being shown.
How do I fix this. :(
The comment from Alejandro is correct. Since you have deleted the repo in git and removed the remote from your local machine, then the only machine that is still tracking your desktop is your local machine. So, at least your problem is contained.
To "un-git-ify" your desktop, you simply need to remove the .git folder at the root folder that is being tracked.
To find out the root folder that is being tracked, do git rev-parse --show-toplevel.
Go to that folder. Then, look for a .git sub-folder there. Delete this folder (and all sub-folders) with a command (be careful here!) like rm -rf .git. This will remove git tracking for your folder.
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