WILSON LOW while this may sound like an insult, it is a legitimate advice. You have no idea how much value it adds to you simply being able to speak proper English, simply put if there are two applicants of equal qualifications for the job, I'd go with the one who can carry himself well.

Idk how much of a commitment you have, but if it were me, I'd go for a language class while working part-time and job hunting. Taking Masters at this point seems to be only adding more to your debt (unless you are taking full scholarship)