. I am trying to memorize in a month
- Trying to memorize what in a month? Hangul characters and alphabet? English spelling of Hangul words? There are so many ways that reference can be interpreted since you left it open to interpretation. Clarify that part.
reading and re-writing lyrics or short articles from the internet.
- Perhaps include a reference to translating Bhasa Indonesia to Hangul to better prepare and understand how the language works or how you can better transliterate from your language to Hangul with accuracy.
. I am planning to know more than 1.000 words every two months.
- Be realistic, just aim to learn as many as you can in a month since this is a pre-arrival in Korea language study plan. Do not set unrealistic goals. Formal lessons in a Korean language school would also be a more admirable and realistic language learning plan. Everything you are discussing are not assurances that you have a viable study plan for the language and that you can actually learn the basic language before you go to Korea, if you pass the screening and interview that is.
TOPIK 4 in less than a year.
- Too low. Aim for the actual passing score or higher. Hence the need for you to attend formal language school.