I've search around and I haven't found a way to delete ALL of my photos. I downloaded the mobile version and it shows that there's no photos, but the storage is full. Is there a way to select all of the photos at once and "Trash" them?
I am working with Arthur offline to address his issue.
One thing to be aware of is that Lightroom does track the size of partially uploaded photos but will not show those photos until they are fully uploaded. Those photos will be shown under the "Sync Issues" filter using Lightroom Web (lightroom.adobe.com).