I am struggling to find a good revision technique that will help me remember key things, could anyone give me any tips?
1.1. study more than one subject/topic per day because it's better to do small chunks than loooong periods on the same thing
1.2. study the same subject/topic again a few days later. You'll always forget stuff, so if you revise again, your memory gets stronger
2. use visual elements
2.1. things are harder to understand when it's only words.
2.2. examples: mind maps, colour coding, timelines, diagrams
3. practice questions
3.1. you`ll learn so much more if you test your memory than if you are simply passively reading notes
3.2. flash cards, past papers, and revision websites such as www.senecalearning.com (great and free!) or tassomai (good but not free)
Hope that helps! If you want more details, look for The Learning Scientists blog, they are actual scientists and have a podcast giving revision tips to students