The dress fits fine, but its too long

I used this for halloween and lined it with feather boas (i was a chicken). I was a bit sad to wreck the dress with my glue gun because its actually a nice quality dress. I ordered a small? Im 5\'1 about 128 lbs and it was a bit long. I didnt mind because again, it was for a costume, but if i had bought it for normal wear, it would have been a bit long for me.Also, even though it is white, it is NOT transparent which is always nice lol