When you shake a snow globe, the snow swirls about for a while, but eventually it settles. Moods are similar. There is no question that your globe is going to be shaken from time to time. The more you understand that your thinking determines your psychological experience, the more quickly your snow will settle.
My personal experience of the world was and is only a function of my own thinking.
As effective as being vigilant about your thinking can be, it isn't as important as seeing how your thinking forms your psychological experience. Once this occurs, you will come to possess both a conscious and an unconscious awareness about how your thoughts affect your reality.