Question for those working in Japanese-only places

If you’re currently working in a Japanese-only environment, I would like to know..

What JLPT level are you? And how much 敬語 do you use on a daily basis?

Where did you pick up 敬語? Did you learn it naturally through others, or at a language school?

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I got the news that I passed N2, but I don’t have much confidence in 敬語.

I work at an Eikaiwa, and I am interviewing for the 正社員 staff worker position in a few weeks.
So I would be able to correspond with customers in Japanese without the English only restriction if I do it.

I would like to give it a shot before transitioning to another industry. I think it will be a chance to practice business level conversation

I’ve had some people tell me language school is a waste for only BJT/敬語, but what do you guys think?

I am of course planning to buy a book and self study, but I am wondering if a business course makes a huge difference. The one I am looking at is 2万 a month. 💀

by BPGaki