Realize who God made you to be. Why you are the way you are. And you will begin to understand that you were created for a purpose. All the little and not so little intangibles that make you who you are, are there for a reason. If you are where He wants you, if you can "Be still and know that He is God", you will find that indeed, you are "wonderfully and perfectly made". Yes, there is a purpose to all the 'character building' we find ourselves going through. That purpose is to glorify Him as we are of use to others. When we are in that special place, and when we finally 'get it', we find no greater self-fulfillment and deep inner peace and joy.