So, today, while going through my code, my computer crashed. It's an old computer from 2011 that I haven't the heart to replace. When I loaded up Unity, I got over 1000 errors, all talking about the GUI not being able to load. My scene was gone. I double clicked my scene, and it was empty.
I had no backup.
All my assets were fine, but it was extremely disheartening. Looking up support, it appears my scene got corrupted and is gone. I might've been able to save it if I hadn't loaded Unity, but I didn't know. Unity stores a backup scene to the last it loaded. But once you load unity, that backup is overwritten.
Everything I had was UI, luckily. No custom settings or anything. I think I had some fonts that were not the same, so this will give me a chance to get the measurements correct for everything. My scripts were doing all the settings, so I literally just have to drag the UI into their slots once I have them up, and it'll work as plug and play.
So a lesson learned. Back up your work. Use version control. I had no back up to this scene. I didn't think it would happen to me. Luckily it was stuff that I can reproduce in a day, and not my code.