Every religion, from A-Z, has The Golden Rule (although the wording isn't exactly the same anywhere): Treat other people like you'd want them to treat you. A Jewish scholar (who? I don't know) Once said that this was the Law, the rest is just commentary. And the Jewish religion is big on (religious) Law.
The Golden Rule isn't always the easiest one to follow. But imagine if everybody did follow it, or at least TRIED! I also believe that if you tell God what you did and genuinely apologize, and try not to do it again, it'll be off the books. God makes lots of promises to us, and He doesn't welch on anything, ever.
I have been all over the place spiritually for a long time in my life. I was raised Catholic & left the Church for about 10 years. I was vehemently anti-Catholic! But one day I got some news so bad, just so terrible, I went in, knelt to pray, and told Him, "I can't take this crap, I need your help". I didn't know where else to go.
God forgives & helps with everything. He doesn't always give us what we want, but He helps. All we need to do is ask. On another note, though, people with other faiths are to be respected, even if you think they're full of it. As a decent human being it's my job not to shove my religion down anybody's throat. This is America, we're not perfect, but if I want to start a church that worships a light bulb, I can. Some places they'd shoot you in the street for that crap.