I am certain enough that there is no god that I'll risk my "immortal soul" and I've never lost any sleep over it. But technically I'm an agnostic atheist because there's really no way to prove there isn't a god, even though I absolutely don't think there is one. I don't believe in supernatural anything, ghosts, demons, magic, souls, spirits, bigfoot or the loch ness monster. Never have, never will. There is no ultimate point to life, there is no grand design to the universe, and when you die you're dead and there's literally nothing you or anyone else can do about it.
So, I make my own meaning in life, I live the way I want to live, I try to be kind to others and treat people with respect, not for fear of punishment, but because being a pathetic self centered dickhead isn't what I want to be. I don't wish for death, and I don't fear death itself; though I fear how I will die. But since there's little I can do to control it, I don't waste much time worrying about it.
Oh, and I'm glad I'm an atheist. I sleep well knowing there isn't some weird thing reading my thoughts and judging my life choices through the moral framework of a bronze age goat herder. That and where I live, Sunday morning is a great time for some R&R while everyone else is pretending they don't hate sitting around and listening to some sexually repressed weirdo talk about the evils of porn (that they totally don't have on their church provided computer).