This is the common query that every student wants to know and increase band
In order to achieve more bands , first of all student needs to make a study plan and stick to it as long as desired bands are achieved.
As GRA plays an important role in scoring criteria ,focus on Grammar part , learn to use tenses , enrich vocabulary by various means , phrasal verbs , collocations , try to paraphrase various passages and write them on separate copy/ diary
Assess yourself honestly , where did u start and where do you stand after one month of constant practicing ?
Try to avoid mistakes that you have been doing in your past Mock tests . Solve them again and learn why you failed to spot answers quickly
Sequence your ideas in proper manner , connect them logically using appropriate linking devices . Practice or write at least 200 words everyday in a given time- frame. Make a different diary and look back again after a month to see how far you have come .
Know different kinds of question types asked in reading and practice one by one everyday , see where you lack
Work on the areas you need to improve and tk advice from your teachers
Dont dishearten by the scores u achieve , with the constant practice you will definitely achieve desired bands.
Finally , be confident about yourself and practice everyday.