There is much written about the process of getting started. There is no right place to begin. You are where you are. That is where you start.
Planning is a journey. There is a destination, but there is much in the journey to learn, savor and enjoy. Like any journey, you cannot make it go faster. Planning is a process that requires time and reflection. Because this can be a long journey, set milestones and celebrate when these milestones have been achieved. Do not be afraid to share the frustrations. This is hard work. There will be unexpected roadblocks. Do not dwell on the frustrations, but recognize them and think through the alternatives. This is also a spiritual journey. Make time for song, reading and prayer.