There's no reason you shouldn't be taking English preparation courses.
There are five different ratings you can achieve; Functional, Vocational, Competent, Proficient and Superior.
Compare the English tests used in Australia for student visa applications.
Change your thinking, utilise the media and get yourself a mirror.
Australia is proud of the reputation and quality of its English Language Intensive Courses for Overseas Students (ELICOS). These courses allow you to develop your English language skills for further study or work opportunities in Australia.