What forms my identity and powers my attitudes?

The engine that drives you forms your identity and powers your attitudes. I have been challenged with this in my life. What drives me each day. If the engine that drives me is self image, perhaps the vehicle (how it presents) is how I dress, what I drive, who I hang with, etc. If the engine is money, perhaps the vehicle is career. If the engine is Christ perhaps the vehicle is love, servant hood and friendship shown or at least attempted in all that I do.
In my life I haven't all ways allowed Christ to be the engine. What am I doing to ensure this? I find that just like the marriage relationship it takes work and time. I need to spend time with God by reading his word and praying.