NEED HELP FOR CULMINATING! A THOUSAND SPLENDID SUNS

Hi guys! I have to write a literary essay on A Thouosand Splendid Suns, but I am sort of in a pickle! I have to choose from: social expectations and cultural expectations. Now, I know there is a lot to write about but I have no clue as to where I should begin.. If you guys could help me choose a theme, or give me a few ideas on what to write about and what my three main points should be. Also, help me create a thesis! Not create one for me but help me..
Thank you guys so much!!