i've started straight away after my jan exams because the notes making for history are super long. i wouldn't say i'd properly revised then but i learnt a few thing here and there and it just stuck to my mind up to now too
I started yesterday and plan on doing maybe 2 hours a day until study leave - thats when I'll do some hardcore revision.
I only started studying properly a week ago :// I'm supposed to study for about 6 hours a day but I procrastinate a lot and end up messing about lol
I started around early march, so only a few weeks ago. Most people start properly revising in Easter according to my teacher, it's just tsr is full of overachievers.
Stop worrying about starting too late. Start now. It's Easter, so you have plenty of free time. Aim to revise around 6 hours a day, do a full school day of 9 to 3 (or 10 to 4). Do a proper 9 to 5 work far if you're committed. Work in the library if you can't work at home.
I'm afraid this isn't year 9, you don't get to have an Easter break, work now and you'll thank yourself later.