The fact is that most people simply have no idea about what they really want. Thus, lacking clarity of vision and purpose. So how does one acquire clarity? Well, introspection is the key. Ask yourself questions like: What is it that I really want? What does success mean to me? How will this accomplishment make a difference to my life? In other words, clarity means understanding exactly what you want, why it is that you want it, and how it will affect your life.
One of the best ways is to devise and then stick to a plan. Begin the plan with the goals you have in mind and then work backwards, mentioning each step that is required to achieve those goals. The plan should be made as detailed as possible. Make an effort to visualize every setback that can be possible, and plan for it. Write the plan out either in your computer or on paper, and review it on a regular basis, ensuring that each step that you accomplish takes you closer to your goals.