Begin with yourself. What questions do you have? Where can you find the answers? How can you build on what you've already learned? Finding your purpose means understanding who you are as much as what you can do.
Faith is the key to any philosophy in life. For every desire we have, there is something that fulfills that desire. We hunger, we eat. We get thirsty, we get water. If we're seeking, for what do we search? How do we know we've found it? There is a way to learn.
God's creation is all around you. Be inspired by the gifts He has given us. Be motivated by the beauty of a sunrise, the feel of the breeze. Know that God is in His creation, and that creation includes you.