We may have a hero starting out not wanting to do either their journey to get something, live their lives despite fears or physical danger. In non-fiction we begin with laying out what we want to talk about, then introduce people who usually have not benefited from whatever you are researching, then do find information and, because they found information on their travel, health, computer issues etc. they win something in the form of knowledge (and your audience loves having a non-fiction piece personalized).
You may wind up with a hero and a subplot enemy (or enemies), even our evildoers either in our lives (in a memoir) or in our fictional stories must have a narrative arc (they want to do something, but it is something nasty) and those wretched anti-heroes must be defeated: this is their narrative arc.
When you decide on your characters for fiction/memoir/screenplays etc. sit down, list all the characters in your work. Then write a few words next to their names what they want. It will clarify your writing tremendously. Then write down the roadblocks they run into, and next to their names, if they are defeated meeting this roadblock or fail to overcome it. Voila. You are creating your own roadmap for your work. And that, my friend, is good writing.