XS, S, M, L, XL

i went to zara yesterday. i found this cute skirt that i really wanted it so badly. too bad it was too big for me even though the size was S. i knew it in the beginning that it would be too big for me. but i tried the skirt anyway and turned out that it was true. i asked whether or not they had the XS and well they didn't have. so i tried another skirt,size XS-basically the same skirt but in different color. well, it was still too big for me. damn it. i dont freaking understand. i've gained my weight and XS is still too big for me? wtf. i know, some of you will hating me because you think that im not grateful enough to be thin-believe me im really grateful. but it is sometimes frustating to find clothes or skirts or jeans or dresses that really fit me. so now you see that being thin or skinny is hard too.