Okay, it’s back to normal now, thank you.
The password is reset to the one I sent.
X Theme is active. The home page still looks like this:

and I still get the same thing (see image in first post in thread).
The other guy said,
But I don’t have any idea of how to do that. I am doing this for school and have zero experience. And, ironically, my prof can’t help me. I have to have work done on it by tonight (using X Theme), and so far, I haven’t been able to do anything but fail troubleshooting for a week. I am seriously fighting an urge to throw my computer across the room.