Worry, nerves and fear would not have existed for her if she had known. Some people believed in reincarnation, heaven, hell or nothingness.
As everyone who had gone before her ,and would go after, she would now have her choice to be God. Only for a unit of time so small she couldn't comprehend, but would feel like millenia, until the next person passed and took over. Everyone got their chance...but she knew none of this as she took her last breath.