Chemistry, more so than many subjects, relies on understanding of concepts. It is unusual in that you are asked to think at three levels and be able to move between them at once. There is then the problem of approaching questions, which will be an issue for this year when the style has changed and dotpointification has been substantially reduced. Finally, there is no "right" way to learn chemistry, but there are "wrong" ways... and sadly some of the syllabus structure is unhelpful in this regard, though it's a major improvement on the last one.