Is God real? Well now that's a very handy question that can easily become an entire conversation. And so the answer to your well anticipated question is yes, God is very much real and he is alive in our hearts, our faces, and our souls. There is absolutely WAYYYY to much evidence of God to fight the fact that he does not exist. Just looking at the power of love and all the things that exist in this entire world is more than enough proof to conclude that God does fairly exist.
A success mindset is one thing that will be fairly IMPOSSIBLE to have without God on your side helping you every step of the way. So realistically you should not at all any longer wonder if God does truly exist or not. No need to wonder is God real. He created us all equally with free will in mind although it is his hope and want that we serve him and cling on to him for who he really is and continues to be. A success mindset must come after having a mindset knowing that God is the one who gave it to you and that you should and must rely on him. Just look at how many entrepreneurs there are today.