My chances of going Ivy League?

It's tough to get into any of these schools. Everyone who applies has your credentials or better, so the more interesting you can make yourself, the more likely you will catch their attention. Think about trying to get an internship in some field related to your interest in language, or do volunteer work as a translater at a shelter or something like that. Working at the zoo or the pound is nice, but I think it would be good to do something that shows how you are using your pion for language. Good luck!