Why is my life confusing?(read WHOLE description)?

I feel like I'm lying to myself saying I'm going to be a doctor or a scientist. I have true passion for filming but my parents say "we didn't come to america so you can make terrible movies!" I have barely any friends, and I am an unfit nerd. I always see on T.V there's always shows where there's a group of kids who are friends, nerdy, stupid no matter what. but these days you have to be "popular" to have friends. and dating, I can't even date a girl because my parents say that I'll put shame on that family " if I date a white girl" and where not even muslim where catholic! but what's the point it's not like a girl will ever like me. and I'm not a nerd because nerds are smart. and I for one didn't do so well my freshman year of high school. so not only am I ugly, nerdy, lonely, and unfit. but i am also stupid. can someone please explain why life must be so FREAKING CONFUSING!!!!!!!!