To approach the issue of God's existence is to assume your own sovereignty and not Gods'. To ask the question "Does God exist?" is ultimately foolish and a waste of time because His existence (or lack thereof, hypothetically) is a matter of truth and spirituality not your own conclusions.
Instead, seek God Himself. If you do not find Him, then it is of no [further] consequence that you haven't.
"What sorrow awaits those who argue with their Creator. Does a clay pot argue with its maker? Does the clay dispute with the one who shapes it, saying, 'Stop, you're doing it wrong!' Does the pot exclaim, 'How clumsy can you be?"
Seek God Himself. To seek to define God by your own presuppositions is to take the place of God and all you will end up with is worthless idols of your own creation.
Humanity has been doing this since the dawn of time, with each generation earnestly believing they will succeed where the last has failed. Such is the effect of the original lie and the fall of man. Man has fallen and cannot get back up on his own.
How can one who has fallen get back up? Can he lift himself back up on his own? No, for he is still in the state that caused him to fall. Only if another comes and picks him up can he stand again.
Man has fallen from God by our own folly, which was capitalized upon not by the creator Himself but the creator of lies.
Anyone who says he is never wrong is a liar, and has been lied to. Look around. You see the deception of others, do you not know you've also been deceived? Of course not, because the deception is effective. I will not lie to you, I am also deceived. I am even now in a state of self-deception of my state of deception which I struggle to free myself from to no avail.
I was born a wolf, and at best I am a goat, now my only hope is to be a lamb. Do as I do, not to free yourself, but to change your mind and seek God, the one you have fallen from. Why do you lay on the ground and gather together dirt to make your own god? Look and see that He has bent Himself to you graciously to pick you up. No, in fact He has cast Himself on the ground for you to fall upon. Such is the God you seek: He blessed you in your creation, but you spit in His face and run away, and yet He still seeks to save you from your own self-destruction. You run away from Him to your own suffering and destruction but He remains unchanging in His love, never forcing, but asking that you turn back... not to place the penalty you know you deserve on your head but to forgive and forget. God is here, He is very real, and if you want to understand Him you must see that He is seeking a relationship with you before the rest of it makes sense. If I say "seek God Himself" and you say "how?", you should know, God knows the number of hair you have (for bald people that's not so impressive I understand). You are an infant in knowledge in comparison, so speak, aloud or in silence, and start asking for Him. Be persistent in asking, be annoying, inconvenience God with all that you ask for... this is far preferable to Him than your life so far of ignoring/ignorance.
Why do you trade eternal gifts which would be given to you freely if you would only take them? Instead you opt for empty intellectualizing and philosophy. Even a rock has more intelligence than you, it does not deny its Creator. All that you are seeking to do now bears the mark of the first lie: that you would establish yourself apart from your maker. But unlike the angels, you are made in the image of your maker, and your maker has such love for you that He bears with your lie in hopes you find the Truth that is only in Him. He waits for you 24/365. If you want the truth, I will say it again, seek God Himself. I cannot do anything for you because I am just like you, but I can point you in the right direction. I say that not because I know the truth with absolution, but I have found it in Jesus (God's incarnation on earth... carne, like chili con carne, God with meat) and I would be a liar to not tell you that.