I would guess your general stress levels are much higher because of your new life in a new place. That's perfectly normal. Unfortunately, increased stress often exacerbates stuttering. A simple thing to look into are the many ways to reduce stress: exercise, breathing techniques, meditation, hobbies and much more. Just Google "How can I reduce my stress levels?" Research the many different stress reduction techniques and write down three that look like they'll work for you. Try each one and see which method reduces your stress the best. Also, look into ways to boost your self-confidence. When you feel more sure of yourself in your new surroundings you'll stutter less. Like above, Google "How can I boost my self-confidence?" and try a few methods. It's a bit of work but when your stress is reduced and your self-confidence is boosted you'll be much more fluent. And don't forget to congratulate yourself on how much you've achieved. Moving from your home to a distant place to study takes huge amounts of courage. You've accomplished that so you've already proven you have the strength to solve this current setback. You got this.