Sitting at the notebook with pen in hand draws things out of you that you wouldn't guess were there. You can consciously choose the orientation of your writing to draw out what you want. I will assign writings from time to time. Be guided by Natalie Goldberg's book, Writing Down the Bones, which is not only a book on writing, but also a superb metaphor for living. One last suggestion.
People tend to write about events and their feelings about events.
Their style suggests there is a mechanical connection between the two that we are here on earth to go through a set of motions dictated by circumstances, feeling the way the circumstances dictate. Life, however, offers more than that. He yawns and stretches. I hold that we are here to learn, to grow, and to love. A powerful strategy for turning your life into a learning, growing process is to live life deliberately as a process of discovery and intention.