Stick to informal language, unless it’s absolutely necessary to use formal terms. Instead of “utilize” you can just put “use”. Focus on simple language, with one or two syllable words. The only time you should be using higher level language is if you are using scientific terms or describing a technical process. Even then, you should be writing for the average reader.
Writing is important for expressing opinions and ideas. Just open your Facebook feed for a moment. In between all those cooking videos and funny images, what do you see? Opinions and ideas. They are everywhere. Check out the comments under a post that shares important news. You’ll see that some people have strong opinions, others don’t. You’ll notice a classification among those that have strong opinions: some can express them, others can’t. That’s the big difference that writing skills can make.
What were the narrator’s desires in the memoir? What was motivating the narrator to share this particular story with the reader? Often, memoirs can be cathartic for the writer. Perhaps the writer was trying to process a year of grieving and loss, as Didion does in The Year of Magical Thinking, or perhaps the writer was trying to describe a childhood in a concentration camp, as Spiegelman does in his memoir Maus. Consider the motivations of the writer for putting down their story and presenting it to readers.
Develop a central theme, main idea or thesis that clearly explains the purpose behind your autobiography. For example, your theme might be about how you overcame obstacles to become a stronger person, or it might explain why a particular passion -- such as mountain climbing or rescuing animals -- is so important to you. Back your theme with details and background information about your life experiences. For example, you might explain that your dad is in the military, so you've had to learn how to adapt quickly to new schools and unfamiliar environments. Or, you might discuss what it was like growing up in a poor, single-parent home, but how your family was always willing to take in injured or stray pets.