I am a German living now for 2 years here in Melbourne and lived before my whole life in Germany. I have studied Environmental Science and could undertake a couple of courses to improve presentation skills, which helped me a lot when beginning to teach German. Also, my own learning process of the English language when I came to Australia is helping me to find ways to better remember the language/use it more. I am tutoring now since a couple of months here in Australia in my native tongue and enjoy to see when students learn something new and are having fun while learning(though it is not always so easy to learn a new language).
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As there are several similarities from English to German, it might be easier to learn than other languages. Though every language has its own challenges.
If the current tutor is not available, check the availability of other tutors