You may find it helpful to prepare a brief synopsis or outline of the way you see your personal statement developing. It doesn't have to be very long or detailed and, like most personal statements structures, you do not have to stick to it if, as you go along, you find a better route for your journey. Keep it simple and let it serve merely as a quick reminder of where you're going. It might run like this: First memory _ seeing my new baby brother in my mother's arms. Nursing experience _ volunteer in residential nursing home. Visiting the baby clinic _ desires to become a midwife sufficed. Goals for the future _ career ambitions.
It is important to cover whatever period you intend to include in your personal statement because time spent planning your sequence and the method you feel happiest with will undoubtedly make the actual writing that much easier for you.