My theme 2021

Theme of this summer holidays is to re-start learning English.
During summer holidays, I have been working on English grammer and vocabulary. What I did yesterday are comparision for grammer which has 10 rules in my textbook and 16 sentences including 82 vocabularies.

I have a feeling that I have to improve my English. So I could communicate with people with my English that I learned in school as well as business experience for about 15 years, that I haven't "study" English in a structured way.
After coming back to Japan from Europe where I have worked for 3 years as an expat, although there have been few opportunity to use English than before, I am required to write in English rather than speaking.
Speaking could be managed somehow with a limited vocabulary and minimal knowledge of grammer because people understand what I was trying to say. However, this is not the case with writing. It has to be appropriate and sophisticated.
This is why I restart learinig English.

I used to think that learning grammar and vocabulary that I would never use was a waste of my time and boring. However, to be honest, it was really surprising to me that learning English is so much fun. 
I am sure it will be one of the best hobbies in my life. In the long run, I think learning English is worth more than any other hobby.