So, the moral of the story? Choose your point of view and POV narrator carefully. In my case, the novel really was about Augusta, so it needed to be told from her perspective. This could have been accomplished either through a first or third person narrative. I chose the third person limited POV, which follows the actions, thoughts and feelings of just one character, as opposed to omniscient (or all-knowing), which follows the actions, thoughts and feelings of many characters within the story.
Sometimes choosing POV is confusing (or we make it confusing!), as in my example above. Other times it’s an easy choice. For example, in my novel Iggy’s World, the story is about Iggy, a guy who loves bugs and wants to be accepted for who he is. It made sense to tell the story from his point of view as, obviously, it's his story. It’s also a middle school novel, which are largely, but not always, written in first person. And the novel is all about Iggy’s podcast. So, I chose a first person POV for that novel, viewing the world from inside his head as he records events from his own life for his podcast.
Deciding on your narrator's point of view is often a matter of experimentation. Very early in a project, I'll take a passage written in one point of view and try it in another, to see which works better for my story, as in my examples below. And, as in the case of my novel, A Recipe for Bees, it might be necessary to write the whole project from one point of view and then change it to another. For example, if you're writing a story about an event that happened to you personally, it may be necessary to write the initial drafts in the third person, to gain some distance from the material and allow it to transform into fiction. Once you've done that, you may want to rewrite it as first person to achieve the effect you're after.
Again, simplified, your choices when it comes to point of view are:
First person: I flew off in a spacecraft.
Second person: You flew off in a spacecraft.
Third person: She flew off in a spacecraft.