1) Start revising as soon as you can (the earlier the better)
2) Just before revision, make a plan of what you're going to do on each day so you work efficiently
3) Make sure you're revising the right specification and get the right revision book for your syllabus
4) Rely on yourself as well as your school to do work (but rely on yourself the most)
5) Take regular breaks, but not too often, only when you feel like you're not taking in anything
6) Do past papers and see what answers the mark scheme expects and what working out (if any)
7) Stop using social networking sites to prevent you getting distracted (not a must, but I do personally recommend it)
8) If you play any video games, it's better to stop until you've finished revising (prevents you rushing to complete your work so you can take a break) - Also not a must, but I recommend it
9) Take a whole day off every fortnight, to calm yourself down
10) There's no point in trying to make your notes look pretty, it's content, not presentation when it comes to revision
11) The more sleep you get the more easier it is to stay concentrated