My dear Arif,
Thanks a lot for your sweet note. Hope you are well with your family. I am also fine. You want to know the importance of learning english  . Now I am telling you about it. Today English is an international language. We can’t communicate with the outside world without English. The world business and international communication fully depends on English. Today almost all international sporting events, seminars and discussions are held in English. Any good jobs at home and abroad is not possible without a good command over English. Books on higher education are written in English. Almost all the information in computer and Internet is in English. To be a pilot, a good teacher, a good doctor, a famous lawyer, a great politician, a famous leader, a famous scientist, an engineer, an economist, a good soldier or a good tourist guide one must have a good command over this global language. So I like to advise/ tell you to learn English well in order to make life successful and fruitful. No more today. With my best wishes to you. 
Yours truly