The life I have was given to me by someone. I might not know who gave it to me because I was not in existence (to know what was happening) when The Creator was creating. So, having understood this (that I was created) I strongly believe in the existence of God. The Great Creator who created me and every other thing that is existing must be God.
God is the Creator. He is God. There is no better way to point out the existence of God than to show them the creations of God. The massive works of creations is a display of the absolute existence of God. The work of creations could have only been possible with the wisdom and intelligence of an intelligent Creator.
Science can't understand what God is. Since is the outcome of man's thinking and research. This man was created by God. So, something which was created, how possibly could it describe the history of its creator? So, seeking to prove God by scientific methods is a action in futility. Let us save ourselves the stress and believe in the existence of God.