FANVOOK Women's Floral Print Beach Dress Adjustable Strappy Sleeveless Summer Swing Dress (XX-Large, Rose Black)

I am a size 18. I read a review that said a large fit a size 14 so i ordered up to make sure it would fit....Unfortunately it is way too large and looks really bad and baggy on me. The back especially. I was so excited for this dress to arrive..im super disappointed...