Remember that writing in first person doesn't have to mean "you" are the character… really, in general it should not mean that. All it means is that the story is being told solely from a single, limited point of view, and that you're using "I" where you would otherwise use "he/she." Even in third person, you can still restrict what the reader knows to what a single character knows; the only difference is that third person gives you the opportunity to add information beyond what the main character knows. If, on the other hand, you want to restrict information and are having trouble doing so in third person, you might try switching to first—or at least thinking of the character in first person when you're writing: "Would I know that?"
I suspect that a survey of fiction over the past few decades would show that third person singular, with knowledge restricted to what that one character knows, is the most common form seen. (I freely admit I don't have statistics to back that up: that's just what my memory tells me.) Which does not mean you "should" use that form: experiment to see what works best, and remember that this won't be the same for every story.
I suspect that a survey of fiction over the past few decades would show that third person singular, with knowledge restricted to what that one character knows, is the most common form seen. (I freely admit I don't have statistics to back that up: that's just what my memory tells me.) Which does not mean you "should" use that form: experiment to see what works best, and remember that this won't be the same for every story.
Mystagogue
Dark Lord