i grew up but my vagina stayed a child

i have a secret that the doctors told my mom when i was little they said i am not fully developed in my vagina meaning that i can never have sex or have a child of my own

and after growing up i found out that what they told mom was right because right now i am 28 years old with the vagina of a child's my body has developed in to a women's, but my vagina stayed a child, so i am a child in a womens body and that is my secret no penis can fit in to my vagina i cant only halfway put my pinky in and that hurts like hell i have only tired to have sex once and his penis did not fit in and i felt like i was dying and because of this secret about me i have found out that i cant ever have sex because no penis is small enough to fit inside of my vagina