First of all, what is a god? Most of them says god is so powerful, god made us and the universe. Ok you believe that. I am not a cosmologist. I am not Stephen hawking nor Albert Einstein which are a famous atheist. The difference is that i am infamous.
Rather than believing god, shouldn't you believe yourself. You see, it doesn't make sense to believe that we are made by god and we have a purpose. We don't have a purpose. We are living things. Living things live and they die. Just like that. We are not created by our own but we are made by our own. Basically we are guided and learn things on our own. So it is within ourselves to decide what your life is all about.
You know how to sing, become a singer, enjoy your life. Life is all about happiness after all without being not interference to others.