Tips for a levels

I have just started sixth form, and I'm in the final few days of my first half term. I am studying a level economics (AQA), a level politics (EDEXCEL) and a level english literature (EDEXCEL) for English lit i do 'poems of the decade', the handmaids tale, frankenstein, a streetcar named desire, othello and the great gatsby, any help on how to revise for these subjects, in particular englisb lit- something that is effective and not too time consuming. I have an ipad so majority of my notes are digital. Thank you x