admin2021-02-27T12:10:42+00:007 to 8 is a big jump. You need to increase your score in all the 4 skills. You have probably already got a higher reading and listening score but it is the speaking and writing that will be more difficult. If you live in an English-speaking country, work in English, live with English speakers, etc then you are probably looking at 6–8 months. However, this means that you are actively studying English, going to classes 3 hours a day...