Hi there! I'm self teaching Edexcel English Lit too (I used to live in Cyprus as well - not Greece, but same language!).
Anyway. The first thing you should be aware of is that the assessment technique is changing soon for A level English Lit. At the moment, you take six exams as a private candidate (unless you can find and pay a centre to supervise you for coursework). However, the new A level will only have four assessments: two are exams, and two coursework (making it so much harder as a private candidate). So unless you can find a centre that would be able to supervise your coursework, I'd recommend either taking the AS only, or taking the whole A level in a year.
I wouldn't read every book thats cited in the specification - choose the minimum number and study them properly. Generally, every set text will have two questions to pick from in the exam anyway.
For mine I chose: Unit 1: Edexcel Poetry Anthology (ordered from Edexcel) and A Streetcar Named Desire, Unit 2: Emma, Unit 3: Hamlet, Unit 4: Alias Grace, Unit 5: Not decided yet! But probably the Rivals and The Rape of the Lock and Unit 6: Emma and Pride and Prejudice.
As for notes: the way I've done it is to buy a revision guide, like York notes or Spark notes as a general guide to what the examiners are looking for (seeing as the exams are heavily tailored around the exam assessment objectives). Also, I bought a couple of guides of literary terms and English Lit in general (Literature, Criticism and Style is quite good), as well as a literary terms dictionary for help with poetry analysis.
After having read the books, its useful to google them just to get an idea of other people's opinions of the book, to make up for not having classmates to discuss with.
Lastly, you probably know, but you can sit the exams in January and June. If you're going to try to do the full A level in a year, I'd recommend sitting units 1,2 and 4 in January and then 3,5 and 6 in June to spread it out a bit.
Hope this helps!
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