Hey I thought I could help!

you can use highlighters for key points 

colourful bubbles around key points

if you have a reading assignment or have to read or answer a section of questions, put a sweet( gummy bears or chewy small sweets) at every paragraph or three questions, as a mini reward for getting that far

create large poster size notes and stick them up in places you usually look 

every revision session, on a new paper, write what you have learnt at the end and then to make sure ask a friend to quiz you 

remember to go over old notes so you don't forget them in the future

hope that helps!