Small size clothes

Hi all, I've moved to Columbia a month ago and would like to ask for some advice of where to buy small sized clothes.

I'm 30F, 103 lbs, 5ft3. I visited Columbia mall, Kohl's, Target and couldn't find any sweatpants, pants that fit me until I found a pair of sweatpants from H&M Kid section, size 14 (12-14 years old girls). I don't consider myself as a petite but pants here are quite long. I tried on a knee length pants (I believe it was XS or S) in Target and they hit my ankles when they're supposed to be knee length. Any advice where to get small clothes but for adults in Columbia? H&M Kid area can only be for my daily wear without much of variety.

Much appreciated.