Literary Analysis Process

I think that this essay is the hardest one yet. I am struggling to create an introduction and a conclusion. It is hard to think of how I want to start my writing. It is also hard to make a thesis arguable. I am trying  not repeat what I say in the introduction in the conclusion.
I started reading some of the examples in our english textbook to create a good introduction. The examples helped but I still do not think it is good enough.