Stop talking to myself

I talk to myself a lot. Not out loud, but my lips move. I’ve been doing this for almost four years. And I always denied it. But I just caught myself doing it again, while looking in the mirror. I talk to imaginary people or just to myself. I imagine situations. Or I just start a conversation with myself. Sometimes I don’t even know I’m doing it, for example: at school, and it gets me into the weirdest situations. I’m not crazy, that’s for sure. I want to stop this, but at the same time I don’t. It helps me figure stuff out in my head (I’m really stressed sometimes, and it helps me to calm down) and sometimes it makes me feel less alone. Okay, it does sound a little crazy like that. But yeah. I hope I can work this out, or something.