Having a life purpose and vision is a beautiful thing. It gives you focus and direction upon which to make life decisions. With a life purpose and vision, you live with intention because you know where you are going and what you want to accomplish.
Sometimes, people can live life on autopilot. Life becomes an aimless journey to nowhere in particular. Decisions are made based on the circumstances of the moment. It would be unlikely to feel contentment and fulfillment, without knowing if you are indeed living the kind of life you want.
Try creating a vision of what you want your life to look like in all areas of life. What would you like to accomplish for your relationships, health, career, spirituality, and contribution to humanity, etc. Then create your plan to get there. Take small actions everyday and watch what happens. Even the smallest steps will lead you to your goals.