If these are real questions for you, consider a Major, Minor, or Double Major in Linguistics.
Linguistics is the scientific study of language. There are two general sub-disciplines. Theoretical linguistics involves the systematic and analytical study of speech sounds, words, sentences, meaning, and discourse, and how they evolve over time. Applied linguistics involves the mental, social, cultural, and educational aspects of language. You DON’T need to be bilingual to become a linguist though being a bilingual will allow you to capitalize on your bilingual ability, giving you a head start.
Here is what students in linguistics do:
Linguistics broadens your outlook on language. It adds an extra dimension to your studies and can be combined with a number of other disciplines since language can be approached from many different points of view. Linguistics is a valuable second major for students in Anthropology, Sociology, Psychology, Communication Studies, Modern Languages, English, Computer Science, Political Science, Journalism, Social Work, Health and Human Services, Philosophy, Education, (Liberal Studies), and many more!
A B.A. in Linguistics has a lot of practical applications and prepares students for careers in multiple areas including Teaching English (and other languages such as Chinese, Korean, Japanese, or Spanish) as a Second Language (a specialty in demand both in the U.S. and overseas), Forensic Linguistics, Speech Writing, Technical Writing, Editing, Translating and Interpreting, Publishing, Journalism, Speech Pathology, Audiology, and Computer Science.