An additional introduction of me.

Please correct my English if you have time.　Thank you.

Let me introduce myself a bit more.
Actually I was actually interested in learning Chinese more than English when I was a university student although I don't know why.
I was planning to go to China to study Mandarin some day after making and saving money at work but I couldn't make it for some reason.
However, I got a chance to stay in Toronto, Canada with a working holiday visa and had studied English for about half a year.

I thought that was wonderful experience at that time but only now do I realize exactly how fantastic it was.

Before then, I could hardly speak or listen to understand English although both reading and writing English were not so bad.

I learned to got trained of speaking and listening while there, could travel abroad alone and get a job using English after coming back to Japan.
(Unfortunately, I have a fewer chances to speak English in my work than I expected because more than 70 or 80 % of our customers are Japanese and also more than 80% of inquiries from foreign customers are via email or messenger.)

I just started studying English again to get a high score in a on the TOEIC test for checking my proficiency level next month.

By the way, I gave up studying Chinese but happened to meet a Chinese woman female, who spoke Japanese very well, in Japan and we became friends in Japan.
She introduced me to one of her friends and he allowed me to stay in his temple in Ninghai(寧海), China.
I could stay there for 3 months and now I became to be able to use easy words or and sentences.

After finishing the TOEIC test, I will start studying Chinese as well.

A The day of starting to study Spanish is coming soon... hopefully........

An additional introduction of me.

Please correct my English if you have time.　Thank you.

Let me introduce myself a bit more.
Actually I was interested in learning Chinese more than English when I was a university student although I don't know why.
I was planning to go to China to study Mandarin some day after making and saving money at work but I couldn't make it for some reason.
However, I got a chance to stay in Toronto, Canada with a working holiday visa and had studied English for about half a year.

I thought that was a (yes, coming from Japanese it can be hard to remember articles) wonderful experience at that the time but now I realize how fantastic it was.

Before then, I could hardly speak or listen to English although both reading and writing English were not so bad.

I got trained of in speaking and listening there, and could travel abroad alone and get a job using English after coming back to Japan.
(Unfortunately, I have a fewer chances to speak English in my at work than I expected because more than 70 or 80 % of our customers are Japanese and also (and tends to imply also) more than 80% of inquiries from foreign customers are via email or messenger.) 

I just started studying English again to get a high score in a TOEIC test for checking my level next month.

By the way, I gave up studying Chinese but happened to meet a Chinese female, who spoke Japanese very well, in Japan and we became friends.
She introduced me to one of her friends and he allowed me to stay in his temple in Ninghai(寧海), China.
I could stay there for 3 months and now I became to be able to use easy words or sentences.

(A little awkward - "could stay" is expressing potential but "now I became" seems like you actually stayed there. So maybe you mean "I stayed there for 3 months"?)

After finishing the TOEIC test, I will start studying Chinese as well.

A day of starting to study Spanish is coming soon... hopefully........