You might think it's kind of crazy to be telling a story all by yourself to some unknown reader across the world. It's basically like talking to yourself while imagining that you are talking to someone else at the same time. Sound a bit like Rick and Morty's Schrodinger's Cat? Well, if you thought so, then you basically proved Schrodinger's point-- but, that's the reality of telling a story from first person perspective. You're basically telling the story from your point of view with all of your thoughts and feelings included, but the good news is, you can tell us what you want and keep out what you don't want. All your secrets are "tell at your own risk." If you have a friend who gossips, knows all your dirty secrets, and likes to put you on blast on the side while telling your story to the whole world-- that's a 2nd person narrator.. or more like 2nd hand-thrift shop friendship-- you know what I mean... If that wasn't enough-- you also have that looming voice that sees all, knows all, and tells all who probably works for the government in 1984. No, seriously-- this voice is the one you hear at the beginning of all those previews at the movie theatre or always says, "Once upon a time" at the beginning of all your favorite fairy tales. There's no escaping this narrator because you can't see them. It could be a divine spiritual force, a general voice, or a ghost like the past, present, and future haunting the Scrooge's every move. The good news is, with this narrator, you know what everyone else's thinking about you like a Jedi mind trick on the Sith. There's more where that came from, but these are just the basics. Just know, you kind of have to go into split personality mode to tell a story, and realize-- this is a normal part of story telling, and you simply aren't crazy for doing so.
Below are a few videos to help you get an idea of each one: