Super cheap material don’t buy rips apart

I had high hopes for this set, but when I pulled the top over my head to try it on, the straps and the top itself stretched out and stayed that way. The material is a strange sweater material underneath the frayed part, and it really looked terrible and too long on my body. I'm 5'4" 106 lb, and bought an xs. The skirt isn't as bad. It fit me, but the waistband is scratchy on my skin. I bought this set to wear at a sexy beach club in Tulum on vacation, but sadly, there's no way I can make it look cute.