Thank you!
I started revision in Februray but to be honest it was really slow, and only in april did I do solid revision like weekends lunches break times everything.
Not to scare you as I'm sure you're aware of this already, but for most (including me), further maths is a different paper to any other. The majority won't be able to go through the paper normally, its more of flicking back and forth trying to pick up marks here and there. So my advice is literally just try to learn as many methods and things as you can to maximise your marks.
For sciences (triple science for me), I had OCR 21st century and I just bought the CGP revision guides which covered each topic in 6-7 pages. However they weren't detailed enough. So I annotated the hell out of the book (THERE WAS NO WHITE SPACE LEFT ANYWHERE!) using my class notes and textbooks with everything the guide didn't have (A/A* stuff).
French-Learnt vocab;tbh didn't do a lot for it
Geography- Made cue cards for case studies and made a little book of all the content
Graphics- Read the textbook and hoped for the best!
English lang and lit- tbh I didn't really revise for these; just did some the weekend before and took the day off school the day before exam
R.E-made little books for each topic.
I was mega ill in the last week and had three triple science exams, 2 further maths and a graphics. IT WAS HELL xD
good luck and just so you know, hard work is the answer!!