There is no denying you are the child of God. Where you go with this knowledge is up to you.
You are the product of 13 billion years of evolution since the beginning of creation. When you feel yourself drop into a funk, stop for a moment and contemplate the vastness of the evolution that had to take place in order for you to be at this moment at this time. The complexity, interconnectivity and enormity of what has passed since the begining of time is incomprehensible to any human mind.
Stop and contemplate what it means to you to know that you are the Child of God.