Thoughts

Two thoughts have been rolling around in my head lately. the first is an exert from a book that Fawn lent to me called The Dive From Clausen's Pier. In it the mother and daughter are talking about life and actions and what our actions say about us and the mother said something very profound." What we do does not define who we are, who we are defines what we do." The second I heard many years ago, so long ago in fact that I dont remember where it came from or who said it, goes something like this: " The only way to understand ourselves is by what God is and what He does for us." This is written down somewhere in my jumble of journaling and notes and has a verse attached which is Romans 12:2
"Don't copy the behavior and customs of this world, but let God transform you into a new person by changing the way you think. Then you will learn to know God's will for you, which is good and pleasing and perfect"new living translation)
I like the Message version of this the best and it goes:
"So here's what I want you to do, God helping you: Take your everyday, ordinary life—your sleeping, eating, going-to-work, and walking-around life—and place it before God as an offering. Embracing what God does for you is the best thing you can do for him. Don't become so well-adjusted to your culture that you fit into it without even thinking. Instead, fix your attention on God. You'll be changed from the inside out. Readily recognize what he wants from you, and quickly respond to it. Unlike the culture around you, always dragging you down to its level of immaturity, God brings the best out of you, develops well-formed maturity in you."So these thoughts have been swimming around in my head with the usual chatter- thoughts about who I am, how I fit in, if I am living life successfully, if I am really being the best I can be. Similar thoughts I am sure that we all have from time to time. Sometimes I reflect on the days and my words or actions and I wonder how those words or actions reflect on me, what do they say about me as a person? And I remind myself of the quote from the book.. it is not my actions that define me, it is my heart that defines my actions... but then the second thought has recently come into mind... and I remind myself that I am not even defined entirely by WHO I am in my heart, but defined by Christ who lives in my heart. I am not defined by me, but simply put, I am defined by the Creator and what he has done and continues to do. With those thoughts in mind I wonder why I spend so many sleepless nights and anxious days trying to understand why I will never feel like I fit in 100%. I keep trying to conform to the patterns of life around me, keep trying to find "my niche" in society..... but the truth is very clearly cut out for me that I will never find my definition there..... And your thoughts on this anyone?