This is only a suggestion and you should adjust the timings to suit you best.
The reason I liked this timetable is because it allowed me to finish relatively early so I still had the evening to myself. It also allows for quite a long lunch break but it still gives a solid 6h30min revision a day, which is quite a lot.
What subjects are you doing?
I'm studying Maths, Physics, Economics and Computing this year.
How are you revising for maths? If I come across a question I can't do I just give up and can't work through it, its so bad
Once I am comfortable with the topic, I do a paper with my notes, so like an open-book test. I then build up and eventually only use the formula sheet (make sure you familiarise yourself with this, its actually very helpful!) I have 16 papers for each of my 3 maths modules (C1, C2 and S1) and I've left the last 2 or 3 to be done closer to the exam time. This leaves me with plenty of papers to work through over the Easter holidays. As they say, the best way to revise maths is just to keep doing questions.
If i find some questions hard, I just push through them. Remember that you get marks for your working as well as the answer, and so if you show that you know what you're doing, you will still get marks even if you get the final answer wrong. After doing the paper, I take a short break to get a drink and a snack and to clear my mind.
After this break, I go through with the mark scheme, going over in a different colour. Any questions that I got completely wrong, I re-do, rather than just writing in the answer. Its the process of actually writing out the correct working that helps me learn.
I hope this helps. This technique works for me, especially with maths. What maths board are you doing? And which modules are you sitting?