A creationist.
A person who believes in aliens is often referred to as an "alien enthusiast" or someone who is "believes in extraterrestrial life."
Religious.
I would call him a god, or at least someone who believes he is a god.
Lonely!
A Sun reader.
A Marxist
Monotheistic, or a monotheist.
a jackass unless its a proper approch
A Blasphemer. You are not Jesus and saying you are is called "Blasphemy"
The two main kinds of Creationism are young Earth Creationism, which believes in a literal interpretation of the Bible and asserts that the Earth is only a few thousand years old, and old Earth Creationism, which accepts scientific evidence for the age of the Earth but still believes in a divine creator.
someone who believes they always have an illness and are dying even though theres nothing medically wrong
an atheist is someone who doesn't believe in a god.