Ken san, I feel exactly the same! I am a Japanese national, but this laptop which I am using right now has not got the Japanese key board, so I need to write in English. I live in England, and I feel the same as what you explained. I also feel vulnerable when I am surrounded by people who are good at things which I am not. I wish to meet you one day when you have another chance to come to London, as I missed you last time.