How can i stop talking to myself?

Stop talkingh: Sure you can. If you are crazy, therapy or medication might help.

Why stop?: Studies have shown that people who talk aloud to themselves are actually doing something useful: they are stimulating various brain functions, especially memory. Talking aloud is a strategy to aid thinking, and may be used more frequently by people who tend to have a noisy, distractible brain. It will boost brain power, so don't worry!