I'm going to attempt to explain this the best I can.
"That which can be proven without evidence can be dis-proven without evidence"
This is one of the most common arguments I've seen towards an atheistic sense beliefs, and it holds as long as you hold deities in material. However the idea of a God can't be dis-proven without evidence either. God, or most interpretations of a celestial deity, doesn't exist in a material realm, and so using material evidence would be analogous to a book character using the story to disprove the author.
This is not to discredit science, I love science, being a physics major, with a possible change to biology. While not entirely infallible, science is our best tool to understanding the most complex and basic mechanisms of the natural and physical universe. It is not purposed or designed to credit or discredit an incorporeal being. It is a magnifying glass to observe and understand, not a hammer to drive in a point. I've seen a couple of vindications for beliefs on the existence of God vindicated with science, like they occupy a space in your psyche, and one cannot be there while the other is there. It is entirely reasonable to believe in God and science at once, and having faith does not make one an illogical imbecile any more than not having faith make one a moral-less sociopath.
Also science is NOT a religion. Whether or not you believe in science, the universe will behave in a way, in which can predict. Also the word theory in science is used differently than in a typical sense. The casual use of the word would be closer to a scientific hypothesis, as in an idea, yet to be proven. A theory in science is "a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation". Evolution is a real thing, believe in it or not it is affecting the life everyday, as it had been since the beginning of life.
My personal beliefs is something close to animism, in which all natural things have some soul or conscience, from anything as small as atoms to as big as the universe. these souls are in no way divine however, but simply come with existing. I do not however believe in God or a god, nor do I follow any religion. In all definitions of the word I'm atheist, but that doesn't mean I can't philosophize about incorporeal ideas, it just don't think any worship or power comes with it or should go to it.
Sorry if I offended anyone, I tried to make that as sensitive as possible, feel free to respond with questions or opinions, I love learning about other beliefs.