Japanese teacher in Iceland

I'm a Japanese 27years woman who lives in the city center of Iceland now, I came here about a month ago with a legal working holiday visa. I am interested in teaching Japanese to people who want to learn Japanese. I'm new in Iceland, but I have already met many people here who are willing to study Japanese to watch their favorite anime or hope to visit Japan and learn Japanese culture. I've been working as a personal tutor for a high school student in Japan for 1 and a half years who wants to enter a university of vets because I majored in vets at my university.
I think it's easy to speak Japanese because Japanese always use only easy and short words to communicate. but in terms of writing and reading, it would be a little difficult because they have to learn 3 types of letters( Kanji hiragana and katakana) and they are usually mixed in a sentence. So if students want to speak Japanese to some extent, it takes less than a year, but to write and read, it takes more than 1 year.