Totally helps because he is real and is not a figment of anyone's imagination. I'll say this, that millions of people in the world believe in God and millions cannot be deceived or mistaken together. Neither can millions be schizophrenic or hallucinating. There's some truth to this.
God, who is also the creator of this universe and all mankind has put a knowing in our hearts that he exists.
You'll have to seek him out and he'll reveal his presence to you. "Seek and you shall find, knock and the door shall be opened, ask and it shall be given".
No harm goes in asking him if he's for real.
When it comes to does faith in God help? Absolutely. In any and every single way.
25