How and when to start properly revising for gcses?

When should I start to crack on with my revision? How should I start? I’m in year 11.
Thanks.

When I was in year 11, I started in November, only like 1 hour every night including revision clubs. I really started with revision at the end of January. I was probably doing a couple hours every night, with some nights working to the late hours. When I got to may and June I was getting up at 5.00 every morning revising and staying up until 11 revising. That may have been too much but it worked for me.

asap

You should've started in year 7

Well I didn’t start my gcse courses until year 9/10…

You should've started in year 7

I was joking.

I had my mocks after christmas so revised over christmas for them, then had a break from revision until February half term just to re-energise, then in February I started revising properly, then kicked it up a notch at Easter. Hope this is useful

well personally I started revising a month before HOWEVER I did go to after school classes every single day from January all the way to June for the subjects I was struggling in. So go to after school classes at the start of the year, or even now if you can. And revise when you think the time is right