I'm praying for you. What you said in the OP sounds like intellectual doubt. If you really want to come back to God, and if the intellectual part of the faith is where you're having trouble, then I humbly suggest that you set aside all of your spare time to read some apologetics. Apologetics comes from the Greek word "apologos" which means "defense". Apologetics is a reasoned defense of the faith, based on evidence that comes from logic, linguisitics and archeology. There's actually an apologetics subforum in the Theology section of this site.
Someone has already pointed you to Greg Koukl's Stand to Reason. There are some great articles there under the "Resources" section. The website is
Stand to Reason: Stand to Reason: Equipping Christian Ambassadors with Knowledge, Wisdom, and Character.. There's a new student website where you can submit a question about the Bible that's bothering you and get answered.
STR Place: Just Think. Well, actually, the guy there sorts through all the questions and answers certain ones that he believes would be most helpful to the most people, so your question, in particular, might not be directly answered. If you have any specific apologetic or theological questions, go to the theology section of this site. There are some smart people there.
Another website that I'd recommend is
Evidence for God from Science. This guy explains why God and Science are not at odds. He's a biologist. In college, he decided evolution was a mess and that it failed at explaining life's origin. He then became an agnostic, and stayed that way for... 15 years? I think that was the number. You can read his biography/testimony for yourself, if you want. It's on the site.
For an over-arching apologetic handbook, I'd recommend Josh McDowell's
Evidence That Demands a Verdict. He's written other stuff, too.
Norman L. Geisler wrote a book called
When Critics Ask, which addresses several hundred alleged contradictions in the Bible. I think it's out of print, now, but you should be able to find a used copy online somewhere.
Also, read C.S. Lewis'
Mere Christianity. His arguments are actually rather strong. He's so concise, though, that you might find yourself having to slow down to make sure that you get each point before you move on to the next. You'll probably be reading this book sentence by sentence, but the slower pace is worth it. You'll find his intellect to be clearly laudable.
I hope that helps, and I hope that it isn't a few months too late. Remember, I'm praying for you.