One has to intensively study for six months. I think it can be done in six months. By intensively I mean study for 14 hours a day. In 14 hours, one can learn 200 vocab words. So, if you just concentrated on vocab words alone, you would learn 10,000 words in 50 days or 1.7 months. Just under 2 months. That's quite an achievement. Then you would spend a week learning grammar intensively. Then you would spend a week reading all the easy books. Then you should be around the 2.5 months' mark. After that, you could start on reading more difficult stuff. You would read news articles and you would break out the dictionary. You would have already learned a lot of vocabulary so you are just refreshing your memory or looking up uncommon words. Then you can do immersion for one to two hours a day. Then you would be doing listening and reading for 14 hours a day. Then you could spend another week reading harder grammar books. Then you would tackle a difficult book and go through that using a dictionary to translate. Then you would start writing a bit. First simple things like a diary and then moving onto forums. Then you would be spending your study time, reading, looking up words, conversing, watching movies without subtitles, watching TV and trying to understand. You would be concentrating on being fluent in the last month. You might increase the number of one-on-one lessons. You would start reading Korean aloud.
You would then spend the rest of the year getting conversation practice, reading books for fun esp comic books, and learning to use banmal. You can then look at the more difficult "Using Korean" but a lot of the vocab will be familiar to you because you've done the vocab work.
At the same time, you will be picking up vocab and reading and watching media and talking with Koreans as much as you can. You are now talking in Korean. Your Korean will improve so long as you keep up with the reading and listening. Watch dramas you enjoy watching because you will understand most the words by now. You can also start reading manwha because you know more vocab.
You will actually be reading for pleasure. Your eye doesn't look away when you see Korean anymore.
You love reading and communicating and people are giving you praise. They admire your fluency and your language ability. They remember you could hardly speak Korean before and now you are comfortable conversing in Korean. Your pronunciation, intonation are very nice. You don't have an Australian accent. You speak loudly clearly but fluently. Sometimes you speak quite fast.
