I am learning English, because it is essential in my profession is essential.

I am working designing and developing software. I have been trying to practice my English by writing all the code documentation in that this language. I try to improve my writing, reading and speaking skills (writing/reading/speaking) and learning (and how to fix/debug ing) from another code written by others writers in the web.  but Many a times, this is not easy because there are anybody who can check what are no one checks my mistakes. Understanding about my professional field is not a problem, because there  many words are many highly repetitive technical terms whose meanings must be understood precisely. and in consequence, are repetitive words and sentences.