How to Become a Confident Japanese Learners

I got this e-mail.

I am currently studying for JLPT N1.
However, I have a bit of a problem. Since coming to Japan,
I have developed a complex in speaking Japanese.
People either talk to me in English (when I speak Japanese) or I cannot express myself fluently. It is really frustrating.
I want to improve my speaking skills.
My goal is to work as an in-house translator in Japan.
I don’t want to be a person who lives in Japan for over 10 years and cannot speak Japanese.
In addition, I just had an interview in Japanese and completely failed it. So, I am a bit discouraged.
Do you offer any Skype lessons? Or any tips for me?

So I replied this.

Please watch the video!