I have a prom dress, but no accessories or hairstyles! Help me out please?

I would stick as close to the way you normally wear your hair. Maybe bring the sides up with a clip or something. You go too extreme with a hairstyle that you don't normally wear and you will be uncomfortable all evening. The dress is pretty and has a lot of bling on the front near the neckline so probably simple drop earrings in silver would look good.