Why do they think of me like that?

Lenore Candel Asked: Why do they think of me like that?

In link to my previous question.
I never studied as much as my older sister, i admit. I'm not as good as her etc… But i'm smart, and i'm a nerd and a teachers pet at school, i'm uptight and polite all through school, but when i get home i just let it go. My parents think i'm the same at school. Rude, impolite and lazy is how they see me. I went for a serior role at school and my mother discouraged me from becuase she didn't think i'd get it. (i did, and all she said was, well done) My sister has gone into english, and i want to go into astrophysics, but my mum dropped a hint the other day that i shouldn.t go for the performing arts insead because she thinks i'll never get the grades for AP. YOU DON'T THINK I KNOW THAT ASTROPHYSICS IS EXTREMLY HARD TO GET INTO? It's my dream, and they think i'm too dumb enough to get it. I'm trying to prove them wrong, but it is, very, very hard.