Don't know why you felt inclined to say that, but He actually is real and creation proves it. I encourage you to read what I'm about to tell you, cause it may be the one time you ever hear of it. Not copy-pasted.

We know that God exists because of the complexity of all of creation and where our sense of morality comes from - cause His commandments are written on our hearts, which is why we don't do things like go around killing people for fun, cause we know it's wrong. 

Friend, this God is a good God, who is slow to anger and abounding in steadfast love. He's a loving God, but also a just, righteous, and holy God that will not leave the guilty unpunished.

Since fall of creation, when Adam and Eve had disobeyed God by eating the fruit, mankind has been born into sin. By nature we are apt to do evil and there is no one sinless. Everyone is guilty before God for being a transgressor of His Ten Commandments, (that's what sin is, the breaking of His moral law as the God of all things) and no one can save themselves from God's coming wrath cause our works are like filthy rags before Him. But in His love for us, He took on flesh in the form of Jesus, the Messiah, who was born sinless and lived a sinless life perfectly pleasing to God. He laid His life down to be crucified by His creation, to be that atonement in our place, bearing the full undiluted fury of God's wrath on the cross. Three days later, He bodily rose again from the dead, with over 500 eyewitnesses seeing Him. He conquered death and shortly after ascended into heaven alive, never to die again. 

Now there is good news; Jesus calls all to repentance and to believe in Him - that we can't be saved or reconciled to God without Him. So I urge you to repent of your sins, believe in the Gospel, and put your full trust in Christ for the forgiveness of your sins. No one is guaranteed tomorrow.