Is it normal to have conversations with imaginary people in my head?

So basically, I'm over just talking to myself. I leveled up. Now, I find myself (only when I'm alone) talking to imaginary people either in my head or out loud. And very often it's as if I'm a few years older and am telling a story of a few years before (so current time) to an interviewer or a late-night show host. As if I am a celebrity or something like that. It sort of lets me collect my thoughts and idk, motivate myself a little? Because I imagine that a few years later I would be successful with what I am trying to achieve now (for example losing weight) and I see it as a motivating thing, like, I imagine how I would feel a few years later when I finally did these things.
So yeah, is it normal?