Where can a 13 year old find a nice dress for under 100$?

its best not to buy off online because you never know what the item you are buying will turn out like and it would be terrible for you to have no dress and no more money to buy one leading up to the wedding date. I suggest you look around. Look for dress shops that are local. I'm not sure which area or country you live in but stores like forever 21, select, new look, river island and h&m have edgy and gorgeous dresses in at times. Look around, You'll find one eventually. Take care and good luck.