NWOT Zara Black Puff Sleeve Cropped Corset Blouse

Do you ever buy something and then think wtf was wrong with me? Who was I when I bought this? Yeah, well this is that for me. Cropped, puffed, corseted - all things that aren't really my style but are very pretty. Would be great with high waisted pants or skirts with low waisted cargo pants. The tag says m but I'd say it's better for a xs or s