I am Idiot.

So kids, DON'T do what I just did and saved over a high-resolution file with a lower resolution file. I worked on this for a while and this is the resolution it was last saved at ... and the original file was double this.
Luckily though, I only started drawing this for fun and it's not a commission or anything, so I won't need to worry about having to redo it.

Ughhhhhh I am so mad at myself