NWT Forever 21 cream dress with side slits and puff sleeves size small

So I bought this Dress at forever 21 because it looks just like a reformation dress…it doesn’t fit😓. I really love this dress it’s new with tags and it’s a cream / off white. With puff sleeves and they even have a button on them. It does have slits on both side of the dress that comes up around the upper thigh and a smocking on the back.