Willpower usually relates to goals you may want to achieve in life.
Break down dreams into goals, goals into steps.
Dreams are long term, maybe 10 years from now… Goals are shorter – in about 6 months from now… Steps are what you do day in day out to achieve them.
Write down in as many details as possible about your dreams, goals and steps you will take to achieve them. Read them from time to time and make changes along the way.