The first one requirement will make you an effective writer: Read plenty of books.
second one: your hobby is to write and to write.
third one: be confident in yourself, and tell your friend to assist you in your grammar.
fforthone: use more of strong words(so your writing could be more spectacular) rich in vocabularies , correct grammars and spellings and the organization of paragraphs.
fifth one: you will notice that youre improving.