The best way to upgrade your English skill is keeping talking every day. Listening to English learning program while traveling to work. Also, don't forget at least 30 minutes every day to practice on reading and writing. Perseverance is the most important thing for learning.
When I was preparing for the test, I learnt a lot. I learned more English while preparing for IELTS than all the other classes I had. Also, the big support I had from IELTS customer service, as I received a very prompt support from IELTS team for my second IELTS test results.
Take IELTS on computer
Computer-delivered IELTS is now available in Melbourne, Adelaide, Brisbane, Perth and Sydney. With multiple test sessions a day and fast results.