best revision times are between 2 and 4
take lots of breaks
drink lots of water
do not sleep midday (it makes you ratty)
find a way to engage your mind while revising i.e. cover reword notes or answer new questions
hopes this helpsjust give yourself some positive vibes that you can do everything and can easily revise. take some deep breaths.
start with a topic you like the most.
you must be in a good mood and should be fresh.
play along some music to ward off sleepy thoughts.
this all helped 4 me. i hope it will also help 4 u.i find myself in the same position.
maybe reward yourself for doing good work. ie, you can only go out to the movie if you finish maths work first or something.
also try not to have distractions even though i k now how hard it is. and yeah depends which way you do it easiest to hardest or not. i find it best to break it up between what i like and what i dont
good luck