I need a thesis for my essay on Amir and Hassan's friendship; even though I have read the entire book, I cannot create a good thesis statement.
My essay is based on how their friendship has loyalty, jealousy, racial issues, and betrayal.
Your essay covers some wonderful topics! All you need to do is create a thesis statement that tells the reader what topics you are going to cover because a good thesis statement is a kind of outline or preview of the entire essay. Essentially, in a thesis statement, you tell the reader what your main idea is and how you are going to support that idea.
Let's suppose that I were writing this essay, covering the same topics you cover in yours. My main idea might be that Amir and Hassan remain true friends to the end. Now, here is a thesis statement I could write to state my main idea and the topics you have chosen to focus on:
Amir and Hassan's loyalty to one another survives jealousy, racial tension, and even betrayal, a true friendship at the end.
Notice that I have a main idea here that lets the reader know that their loyalty overpowers the three obstacles to friendship, and what those three obstacles are. I do not know what your main idea is in the essay, but whatever it is, be sure to state it and your topics in your thesis statement. It's a map to the essay for your reader.