Sure God exists...He`s the greater power that allows you to believe in something good in this world. There isn`t physical proof, there`s only the faith you have within yourself....If you are doubting and not believing in God, look at your struggles throughout your life and see how you overcame them....if by chance it was being at the right place at the right time for something, or someone coming into your life at the right time to help you. It has been rumored to be the work of God...Even now, when you are looking for proof....its his way of making you seek knowledge you need to affirm whats missing in your life......one day you will believe and he will accept you..