Prepare yourself for IELTS.
Some native English speakers are surprised to find that they score lower grades than non-native English speakers who have only been studying English for a few years. This can happen if you take IELTS unprepared.
I suggest that everyone uses 2 techniques, namely skimming and scanning. Skimming is reading quickly for general understanding and Scanning is looking for specific information within the text. Another helpful tip would be to underline key words in the test. It can help organize the text and save a great deal of time.
Concentration is the most important key to success. Do not lose your attention even for a second! Pay close attention to correct spelling of words. Read the questions carefully and decide which type of word goes in the spaces. At the end of each section you have 30 seconds to check your answers. Use this short pause wisely to make any corrections.
Try to speak to a teacher or mentor long before the exam to gain enough confidence for the real test. Try to say more by adding details as much as possible when answering questions. Be aware that when you make a mistake, you can make things worse by spending too much time correcting yourself; the best thing to do is to move on quickly.
THINK and PLAN before doing anything else. If you start writing without paying close attention to the question, you may end up losing a lot of marks. It is also very important to check your writing for grammatical errors, set aside a sufficient amount of time aside to revise and make corrections.