Religion comes from the word "religio" which refers to 'awe or reverence in the presence of God". Its about acting in response to what your truly beleive is accurate. Every religion offers a solution to different problems. Christianity, specifically, isnt concerned with you being happy with your life. Christianity claims to a truth, on level with that of the law of gravity or any other thing that is based in reality. If Christianity is just a belief preference then it does no real good other than providing community and solving other various personal issues. However, Christianity is a historical faith that claims real historical miracles and truth that is based in our reality right now. Either it is wrong or it is right. Many Christians, myself included, would leave christianity if it could be demonstrated that it was a religion NOT based in reality. Now, the average american today assume it flies in the face of science etc. but honestly.. i have spent that last few years studying it and i must honestly say that the average american is wrong. I challenge you to research christianity rationally and see what its really about. try some of these sites for starters:
www.godandscience.org www.leaderu.com/offices/billcraig/menus/articles.html www.reasons.org and there are MANY more.. (note, this practice of defending christianity and presenting it rationally is called "christian apologetics".
Again, christianity is not about making you feel good. its about truth..
Enjoy 
