A foreign language is always helpful in a career. I understand there is a great need for ASL interpreters, especially in the medical fields, among others, right now. Besides the usual interpretation/translation/education options, which are always good ones for someone multi-lingual, a job that doesn't specifically require a foreign language might find the quality attractive in a candidate. Continue to boost your fluency in all languages and explore what interests you, and your career will follow. You can always speak to (or sign with) someone who has a career you find interesting, and see how they got there. Good luck!