for macbeth i made mindmaps of characters and themes, with flashcards for quotes. then i did lots of practice essays and handed them to my teacher for feedback.
remembering quotes just requires regular, consistent revision. flashcards i found the best as it forced me to recall the quote and also some brief analysis. most people organise quotes by characters and/or themes.
different people will spend different amounts of time revising for the subject as it may be one of their strong subjects or one they struggle with quite a bit. you know your abilities best.