thank you very much for more information/idea. i will try to do more things while i'm figuring thing out. i could not open this post for few days. i thought i was blocked or something but now i am able to check more info on this post.
as i mentioned eariler, after getting the result of the IELTS. i will need more suggestion from that point. i will ask for more suggestion/advice again because after getting the result. it's easier to point/ to judge me to the right way.
thank you very much for all of people who are very kind to me.