We all have influences. The first time you hear something in your life that really turns you around can change you permanently. For me personally, it was the first time I heard Boston's "More Than a Feeling". I was absolutely floored by the sound of the guitar and vocals. It instilled in me something that still encompasses my writing style.
It took years before I understood fully what was shaping my writing and playing. Only when I decided to check out the people who influenced my influences did I really get a good grasp on what I wanted from myself.
So take a trip back. We are our influences, but if you combine what you like and trace it all the way back to the root of where it all came from, you're likely to find your own voice!