I work in various Japanese offices and I can say that some really dedicated Japanese bosses/leaders that spoke English as good as you if not better were great to do business with. I think a lot of the problem in doing business is that both sides think the other is playing by the same rules because of the language being used. Experience and time in Japan has taught me the rules of Japanese business that I didn't know (can't exactly list them all).

The secret my English teaching friends have tried to share with me when I ask them how do you get your students better is for the students to "try" more. All pro athletes never did their best initially and so language learning is the same thing.

The only thing I have against translation by AI is that it'll end up replacing thought if you're not careful. I think using it to double check your understanding is fine (like a calculator for math) but understanding nuance/culture is helpful.

Being that I am in Japan I wouldn't mind conversing in English (written or spoken) with you.