If you are really interested in foreign language so just go for it. Though the languages that are in demand presently are Japanese, German, French, Chinese, Spanish.. Every foreign language has its own advantage.
Foreign language courses can be studied after 10+2 as a 3 years graduate course or even as 5 years integrated language course in the universities offering such courses.
Career in Foreign Language::
2) INTERPRETERS AND TRANSLATORS
Translators find job with industries, publishing houses, government and research organizations. Other job opportunities for language specialist lie with the travel and tourism sector, hotel industry, exhibitions and fairs, airlines offices, export agencies, radio stations and trade organizations..
On other side there are also lots of option after 12th for commerce students such as:: B.com, BBA, BCA, BBM, some computer courses like: Tally, Computer Accounting, SAP financial module, Basic Microsoft elements etc..
CA, CS, ICWA are some professional courses.
All the best