How much do you have to write? per question ?
For the Personal Writing in Paper 1 it depends on what what form of writing you choose.
Debate Writing is usually 2.5-3 A4 pages
Personal Essays are somewhat the shortest but has to be really unique and it can take a while to form good paragraphs without repeating yourself. This is usually 2-2.5 A4 pages
Short Stories are what my teacher describes " The Reason why you will run out of time" . Only go for it if you are really good at them or you get lucky and the story title is near enough something you practiced. These can range from 3-5 A4 pages
Question B paper one - 1&1/2 - 2 pgs
Short story/Personal essay - 4/5 pgs
King Lear - 4-5pgs
Comparative - 7pgs
Poetry (seen) - 4-5pgs
Unseen - 1- 1&1/2pg
Good luck, hope this helped! :)