Streetcar named Desire and Kite RunnerWatch
I can only speak for A Streetcar Named Desire, where I suggest you firstly break it down into acts and highlight the developments in each character and then divide it into various themes e.g. class divides, love and romance, death and mortality etc. That practically sets you up for exam questions, which you should also practise by giving yourself timed essays to complete!
Also I don't know if you've fully read the text so I'm trying to be as vague as possible here lol
For Blanche you could study how flawed she truly is, how in the beginning she comes off as very pompous and vain; mocking her sister for where she lives, her husbands animalistic behaviour - and how it's kind of forshadowed that she's quite the opposite of what she portrays herself as. You could talk about her character development over the course of the story.
There is immediate tension between her and Stanley which creates conflict e.g her drinking his alcohol, lying about it, and him knowing right off the bat, the tension keeps rising over the course of the play between these two and there's lots of stuff on it so when you're studying it try to nitpick with all the little pieces of conflict between them and how it contributes the movement of the plot, their character development, whether or not it changes, how it's "resolved," how it truly arises and the reason for it etc.
Key scenes are the turning point and climax, as well as the first and last scenes, when you get to these scenes focus on them particularly, think about how the turning point links in with the rest of the play, especially the climax, any forshadowing.
The main themes in this story are death and desire, they are inextricably linked to one another and you can find a lot of quotes in the play that touches on the idea of them being linked.
I'm sorry if this isn't much help, if you need additional notes and help with scenes, characters, quotes etc Sparknotes is a good place to go. It gives very good breakdowns scene by scene and character by character.
You could also watch the 1951 film, we did it in class and even though some parts are changed it stays very true to the play, just don't rely on it fully. I thought it gave quite a good insight into how the characters interact and the emotions at play. it is black and white tho lol, kind of jarring for today's standards and it is 2 hours long.