I can answer that!
I have to get by on my real wit. I’m 57 with long silver hair, and am plus-sized. I remember what it was like to be young and cute. That won’t last no matter what you do.
Looks can open or close doors. You got into the room — now prove you belong there! Because no matter how thin you are, you won’t always be young. Depend on your intelligence and skills and work ethic. They last.