Ah, my brain, MY FUCKING BRAIN!

Got some work from the previous company. Need to update some stuff on their website.

Fine, got the files from the server via sFTP.

Made the changes, before uploading the files, wanted to create the latest backup.

Downloaded the files again, just to realize that I forgot to cd into a different directory before re-downloading the files. All the changes are now overwritten.

Half an hour of work lost. DAMN IT!