We all feel fearful when we are pursuing something big in our lives. It's scary to drop what you've been doing for years and take a different path. It is scary to invest money in a project that we don't know is going to be profitable. Nothing in this life is certain (well, they say that only taxes and death are).
When my daughter was 14-months-old, her father left us, leaving me with a hefty mortgage, a physically taxing waitress job, a baby who clung to me all her waking hours, and a body, heart and mind that was steps away from a complete breakdown. My discomfort led to a moment of clarity: I could make a decision about how we wanted to live.