Try using flash cards!!!!
They are very useful, but many people don't know how to use them properly. Most of the time when a person uses flashcards, they go through one side of the card trying to answer what is written on the back of each individual card. Although this is good, you are only doing half the work. A person must then go through the cards on the REVERSE side of the card.
"Suzie was looking at her flashcards for the Korean language. She started with the Korean side facing towards her and tried to respond with the corresponding English word. "워요일 is Monday", "화요일 is Tuesday", "수요일 is Wednesday"; using this pattern, Suzie finished studying her flashcards. Then she shuffled them and started on the English side, then she said the corresponding Korean word. "Sunday is 일요일", "Saturday is 토요일", "Friday is 금요일", "Thursday is 목요일"; after going through all of her cards, Suzie then completed her studying for the day. She studied in this way two times a day for seven days and was efficiently prepared for her TOPIK exam."
This is a little secret a philosophy professor once told me. Hope it helped! ^^