At the beginning of the long summer break or, better still, at the end of the yearly exams, you should take the time to
get your notes in order in those subjects which continue into Year 10
make sure that you have the notes from each completed topic kept together with a single summary sheet of the details on the top of the bundle
revise the notes you have, filling in any gaps - 3 months down the road, at the beginning of Year 10, you will have forgotten to get copies from friends
file the notes in specially labelled folders
check that you have any textbooks which need to be used in Year 10 and put them away on your shelves ready for Year 10
get materials like folders, pens, pencils, scissors, paper ready for Year 10
then, and only then, can you go on holidays knowing that everything is ready to pick up and move straight into Year 10 with confidence