How can you spend your whole life worshiping God when this life may be the only chance you get to live. If there is no heaven, and there is no hell, and there is no afterlife of any kind, then shouldn’t you be making the most of the life you have now? The life you have now is the only one that you can know with certainty you will have. Don’t waste it giving your time and resources to gods, churches, and influential TV preachers. Spend that time and your money as if this is the only life you have to live and is your only chance to affect the universe; because that very well may be the case.