Learn Chinese at any age with Malaysian guy

Hi, I am Zovin from Malaysia, Chinese is my mother tongue, I have 7.5 in IELTS and B1 in German. Besides, I speak Malay and Min Nan Chinese (Hokkien). I am currently a master student in Shanghai Jiao Tong University, majoring Bioengineering.
You can ask me anything about Chinese, such as grammar, writing, speaking or listening. I can plan the lesson according to your own need, whether it is for exam, or practical use of Chinese.