wearing toddler shoes

anybody else have a toddler foot. i wear a size 2/3 and buy from the preschool section. sometimes its ok bc its cheaper, but ive never found a heel or boot that fits me bc they dont make them for toddlers. and people say my size is equivalent to a womans 5 but a woman 5 is like 8.5 inches and my foot is under 8 inches. its frustrating bc ppl say try size 4 but even size 4 is too big. and im 21 yrs old i just want to wear heels😭