Maths Revision Time

I Don't know if I have started my revision late or early but I wanted some tips from the best mathematicians on TSR.
For a start I have done
- Revision cards for C1,2 and S1 which I find effective
- I was going to Start doing a solomon paper each friday for C1 and different day for C2,S1
- I was also going to watch topics on exam solutions when I revise each subject during the week

Do you think this is a good plan/ how long do you think you should revise for a day include times for breaks how long per session.