Not clear what you're experiencing from your description. Everyone talks to themselves. But you seem to indicate you perceive there are people talking to you in your head. I believe you need to see a psychologist and explain exactly what's going on and why it's bothering you. That way you can get diagnosed and get sent to a psychiatrist if that's necessary. More detail might get you more input, but nobody on here can diagnose what's going on, so you'll still need to see an expert so you know what's going on.