In ballet:why am i thinking like this?Please help!?

So i do ballet (fourth year in ballet school) and when i watch videos or pictures of svetlana zakharova's extensions and arches ( i am also amazed by Alessandra ferri's arches) i feel depressed because i don't have a very high arch and i will never will. (my hope is that when i'll be grown up there will be some kind of safe instep implant thing,like a safe surgery to get your ankle more flexible and your instep higher)My opinion is that if a ballerina does not have very high arches and amazing extensions. . . well she is not a ballerina. . .and my dream is to become a very very very famous ballerina (who doesn't).So,what is your opining on all of this? Thank you for reading and hope you will answer:)