The exercise of writing it has you look at what is really important to you in life. Then it's time to start living it. This gets to the deeper core of who you are. Your purpose comes from the depths of your soul and the sum of your life's experiences. It is a statement declaring what you are passionate about providing in the world.
Help is available in the format of workbooks, classes and personal coaching.
When doing those things, notice your body and mind and how it responds. Experience what it feels like to feel these higher qualities. Breathe them into your cells so you can recall those feelings when you want to. Accessing these higher qualities takes commitment and practice. When you are able to do this, you not only feel better yourself, but you naturally begin to radiate more of these higher qualities in the world.