Smart but stupid at the same time?

im blonde, hot, and not very smart, but i speak, read, write 5 languages. my mom is french and spanish, and my dad is german and czech. i have lived all my life in u.s.a., so i speak english, french, german, spanish and czech fluently. but its weird because i have been really good at languages but at school im only good at sports. can u be just linguisticly smart and stupid for everything else?