Listen to Ankle breaker, and Ek has a point but Im going to assume NYCPM and Scholl are your last options for interviews and you applied to all or most of the pod schools.
To add a different twist to this I used to be an Avid Actor, I even went on a short tour with an acting group up the east coast. I would play characters with accents all the time I could make people think I was from anywhere on earth. The best bit of advice I can give you is work on your english, work on how you pronounce words. Youtube is your friend you should work as hard this week on being the best interviewer as you would in pod school its that important.
Anyone can imitate an accent, im not saying to be fake or over the top but practice, practice, practice. You seem like you really want this so make yourself a proper speaker you have your script its your life and your story. There's only a few different ways you can explain yourself if your telling the truth so practice it with somebody who can correct you. The last thing you want to do is come across as not only a bad speaker but a bad listener because if you cant speak correct english you probalby wont learn in english to well. (They will assume this .I assume)
I could guess your previous interviews turned out how they did because of poor interviewing skills, like Ankle breaker said if they interviewed you then you have a shot.