What's the best way to use the IELTS Advantage Practice Reading tests?
The IELTS Advantage Practice Reading Tests are designed to give you an opportunity to practice the strategies for the different question types.
They are not designed to check your level, so don't attempt them under exam conditions. Doing so is a waste of time.
Instead, go slow. Check your notes and follow the correct strategy for the question type.
Check your answers and analyse your mistakes following the procedure in the 'Learning from your mistakes' lesson. You must figure out EXACTLY why you got each question wrong so that you can identify your weaknesses and improve them.
Identifying your weaknesses and improving them is the only way to increase your score.