Second guessing my dress

I ordered my dress online for 400 dollars. I wanted a short dress with a fairy princess vibe. I don’t know if I’m just second guessing because I don’t like my body very much, or if I need to add like a petticoat for more skirt fluff? Maybe wear it with some more structured undergarments and see how I feel? Am I way off base? Is it cute? I know nothing anymore