It's common for people to proudly boast that they are finally becoming their "true selves." In the Kingdom of God, however, maturity is measured by the extent to which we become less of ourselves, and more like Christ. He is our identity. In fact, the Bible teaches that we “must become less and less, and He [Christ] must become greater and greater” (John 3:30, New Living Translation).
In John 5:9, Jesus said:
"I tell you the truth [...] the Son does only what He sees the Father doing, because the Son does whatever the Father does" (New Century Version).
Unlike the unsaved world, we don't have to spend years exploring our "true selves." We know exactly who we are: Children of the Most High God. And, the Bible tells us exactly who our Father is. That's all we need to know. That's all we need to be.