Life is sh*t if you don't put out the effort to make something out of it.
The way I see it, why NOT believe in God? If your life is sh*t right now it's gonna be a whole lot worse if your wrong.
Keep your life in context though, you've got the rest of it to live and your probably way better off than alot of people on this earth right now so quit feeling sorry for yourself, get some counseling and do whatever makes you happy.