Why do I want to improve my English? There are several reasons:
First, English is one of the most widely used languages in the world, and much of the knowledge created by humans is written, read, and discussed in English. I may miss out on much of this knowledge if I cannot use English.
Second, English is widely used in many developed countries. I may find it difficult to work in these countries if I cannot use English effectively.
Finally, for a programmer like me, English is an important skill because I want to find a better job and eventually obtain permanent residency in one of these countries for my family and me.
For these reasons, improving my English has become an important goal for me at this stage of my life.