<u>gather evidence</u> and <u>create an outline</u>
Explanation:
You should always collect a bunch of things that can make you draw a reasonable conclusion on your analysis. That includes facts, expressions, dialogues and so on. When you write a literary analysis, you should be able to deliver it in a way that it is believable and having enough evidence certainly helps.
Also, you should know precisely how to deliver your ideas to make sure that you're understood the way you intended to be. That's why careful planning on how to do it is very important, making an outline Mandatory.