you've made the first step in discarding religious superstition -- what help do you need?
unlike the definition supplied by the religious atheism is merely the acknowledgment that we find no evidence FOR the existence of any god. it's not an easy or comforting conclusion, but it means we need to seek a moral basis somewhere other than "do this or you'll go to hell!"
check out Skeptical Inquirier and, Skeptic MAgazine and Free Inquiry for solid information. I first found them thru Martin Gardner's Scientific American column almost 30 yrs ago
we can't leave links here, so contact me directly if you want some further references for critical thinking.