Since you did not make yourself, you cannot tell yourself what your purpose is. If we seek out His purposes for us and then walk according to those purposes, then and only then will we find true fulfillment. According to Jesus, the number one reason He came was to reveal the Father - to glorify the Father. Jesus understood that the only way He could glorify (reveal) the Father was to allow the Father to glorify Him. (Jn 17:1) Yet, we have a mindset in the Body of Christ (as a whole) that God is interested in our needs but not in our wants. Jn 15:7-8 speaks differently: "If you abide in Me, and My words abide in you, you will ask what you desire, and it shall be done for you. By this My Father is glorified, that you bear much fruit; so you will be My disciples." When we don't ask Him what we desire, we are actually stealing an opportunity for God to be glorified.