Yeah, I don't understand how some people can only believe in certain parts of the Bible and not others? You either believe it or you don't, you can't pick and choose. Like people who claim to be Christians but say it's OK to be gay. People like that, IMO, are only in it for the "warm fuzzies." They want just enough to make them feel good about themselves but not enough for it to be an inconvenience. I may not believe in the Bible myself anymore, but if someone else claims to be a Christian, I expect them to believe in it - all of it!
I don't even know where to start as far as no longer believing. Just reading the first page of the Bible brings about a trillion questions, but I guess I can start with: How is it that God created night & day on the First Day and the sun & moon on the Fourth? I know you can't really answer that to my satisfaction - there's really no logical answer (there are "answers," but they're ridiculous ones) - but that's just one of the many head-scratchers I can't get past.
I don't see a problem here. first He made light. the darkness is called night the light is called day. this is the first day of creation. on the fourth day He created stars, sun, and moon to mark off seasons and days and to shine light onto the world. Is your problem with this that God couldnt have counted a day unless the earth rotated with the sun shining on it?