for tomorrow's exam, i just did all the past papers there are to understand how the paper is, what we're expected to do and how well i do in them so if you haven't done them, i suggest doing those, which you can find on the pearson edexcel website under the section of "exam materials".
For paper 2, i don't know much but what i do know is that the essay is structured:
introduction
you then do 2-3 paragraphs using the structure (PEA - point, evidence, analysis)
conclusion
my brother told me that in the introduction you can briefly mention when the play was written and why but he said that you can do that in a level AQA spanish so i'm not sure if that would get you any marks in edexcel italian but if it's relevant, I would include it just to have extra stuff written.
Also they say to write approximately 350 words but i would write more to ensure you do enough analysis (you don't get marked down for writing more but just make sure that everything is grammatically correct)
What film and book did you choose?