What do we mean when we say God exists?
If we mean that God is the most powerful from everything we can imagine, and we can take advantage, negotiate with Him, to grand us favors then we are wrong. This is not worthy idea of God.
If we mean that God is the ultimate police, who is recording our mistakes , sins, etc so that He will punish us in the future then we have psychological problems, we live in a culture of guilt.
God is nothing of those ideas. God is love. It is not that we discover Him, but He is loving us, no mater how good or bad we are. All the universe exists because of the love of God. God became human because of His love, not because he could not do differently.
Because of God love exists, although we taste it bitterly sometimes.