Christianity is a real religion. Is it an actual depiction of the truth? Probably not.
In regards to the question of whether or not God exists, there is no way to prove that he doesn't, because it is technically impossible to disprove a non-tautological existential claim. For example, we can prove that there is no such thing as a married bachelor, because -by tautology- the definition of a bachelor is one who is unmarried. But God's existence is not a tautology, so it cannot be disproven. Another way to think of this is the claim that unicorns exist: unicorns could conceivably exist on the moon, on Mars, the center of the earth, etc., so it is impossible to disprove their existence.
So when it comes to the existence of God, we have to rely on probability. I want you to consider this now: of all the matter and energy in the universe, how much of it is organic (i.e. alive)? A VERY small fraction. Now, of all the life that we've encountered thus far, how much of it is intelligent? This is just as small of a fraction, since the majority of organisms are single-celled, or don't even have a central nervous system (i.e. a brain). So out of the countless possibilities as to how the universe could have possibly come about, what are the odds that the source of our existence was intelligent (i.e. God)? It seems astronomically low. To claim that God created the universe is like rolling a 9,999,999,999,999,999,999 sided die and betting on the number, "7".
This being said, it doesn't seem very likely that God is real, does it?