An atheist is simply someone who does not see any proof for any gods, goddesses, etc....
If I were to suggest that between the Earth and Mars there is a china teapot revolving about the sun in an elliptical orbit, nobody would be able to disprove my assertion provided I were careful to add that the teapot is too small to be revealed even by our most powerful telescopes. But if I were to go on to say that, since my assertion cannot be disproved, it is an intolerable presumption on the part of human reason to doubt it, I should rightly be thought to be talking nonsense. If, however, the existence of such a teapot were affirmed in ancient books, taught as the sacred truth every Sunday, and instilled into the minds of children at school, hesitation to believe in its existence would become a mark of eccentricity and entitle the doubter to the attentions of the psychiatrist in an enlightened age or of the Inquisitor in an earlier time.
Is God willing to prevent evil, but not able? Then he is not omnipotent. Is he able, but not willing? Then he is malevolent. Is he both able and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?
You should live your life and try to make the world a better place for your being in it, whether or not you believe in god. If there is no god, you have lost nothing and will be remembered fondly by those you left behind. If there is a benevolent god, he will judge you on your merits and not just on whether or not you believed in him.
In short, you don't need god to be good. You don't need god to love. But that would be just my opinion as I love and I don't have any gods. I do good deeds... and yet I don't have gods... Imagine No Religion... A world without wars.... Who's god has the biggest Penis and who is right or wrong.... gods have no place in my world of logic, science, and love and neither does the easter bunny, santa, or the tooth fairy.