God is cruel. He forces you onto this earth, forcing you to live in misery. Then when your time comes to die, he's all like: "Whoops! Looks like you picked the wrong religion. Have fun burning in Hell!" God is a bastard. Worse than Satan.
Honestly, if you spend your entire life, the one you have been given now to spend here, worrying about every single choice that you make will effect you at the end...that's a pretty wasted life.