Like many others here, it's.... Complicated.
The answer I give most people is that I'm an atheist, and that I was raised Catholic. That's true for the most part, but it's difficult to encapsulate beliefs and experiences that simply.
So, here is a list of thoughts and ideas that might outline the (extremely hazy and erratic) shape of my experiences and beliefs:
-Being 16 at midnight mass on Christmas eve. The chapel is decorated beautifully and my younger brother is playing bells. He was ecstatic and practiced for weeks leading up to it, occasionally miming the gestures and humming to himself when he thought no one was looking. There's a point in the service where we're given silence to pray for concerns in our hearts. My mother had been hounding me for weeks asking if I was gay. I kept saying no, but the doubt was there in some form. I sat there praying to be made 'normal' or at least given some kind of a sign that I could be.
-A boy is denied confirmation for posting a pro-LGBT message on Facebook. The woman who made the decision didn't know her own son was gay.
-I was a lector. Often times while reading I had moments of "do I actually believe this?" I quit being a lector when I realized that I didn't, and didn't feel right standing in front of the entire congregation.
Some other thoughts:
-I think that there is a beauty to religion. I do get nostalgic for my upbringing. Sometimes I miss the sense of community, and the architecture, and the sounds and smells.
-I think that for many people, a church and a shared belief can be a wonderful thing.
-I think that personal beliefs are shaped by our experiences, and that mine eventually led me to having substantial doubt in the existence of god. For many of my friends, it solidified their idea in a god or gods, and I'm glad that their faith makes their life more meaningful and whole because of it.
-I think that belief and upbringing are inherently tied to our view of the world, and it's impossible to fully separate that from the work we create. That doesn't mean someone is pushing an agenda, but certain moral decisions, outcomes, and things depicted will be shaped by our moral and spiritual view of the world.
So, of course my belief has an impact on my work.