You are the person with whom you talk to most often. To become a serene person, consistently talk to yourself serenely.
Become aware of the tone of your voice when you speak to yourself. This often is so automatic that many people never consider it an issue. But it can be a major factor in whether or not you are usually serene.
(From Rabbi Pliskin's book, Serenity, p.37)
I am careful with my words to "me" and what I say out loud about me and mine. This was not always the case. But a few years ago I heard a message that changed my life. It seems our own voice may have more power over us than any other voice. Think about it. You've been hearing your voice all your life. Your brain picks up on the familiarity of your voice. When I truly want to recall a new teaching I read the material aloud to get it etched on my mind. That one exercise should direct me to only speak over me and mine what I hope will occur.
Not even in jest do I ever speak what I would not want in me and my loved ones.
What do you say?