Are aliens your friend?

With my reseacrh I have come to the conclusion that aliens do exist, I've even heard that they have a hand in creating mankind. Sure it goes against everything I've been told my entire life but we all know that "they"(idk exactly who) lie to us about everything and they put out all these movies and propaganda to lead us to believe that such things are impossible. I am highly undecided on what to believe are the aliens friends of man kind or enemies of man kind? What do you think? Please send any information that you may think is relavent to this topic.