This is a critically important question for anyone pursuing spirituality, for it is what spirituality is all about–your relationship with God. There seems to be as many definitions of God as there are people, and perhaps that is all for the good.
Beliefs about God are a way of shaping a piece of that infinitude that is the Divine into a piece that we can grasp ahold of and relate to. Those beliefs become a structure, a form that we hold God in. In living within that piece of the divine demarcated by our beliefs, it eventually becomes a constriction rather than a liberator of ourselves, of our growth as a spiritual being. That’s because God is always more than whatever we can imagine.
Considering that, perhaps your beliefs about what God is tell more about you than about God. Beliefs about God shape culture and history, for example. In the east one common conception of God has been that God is everything and nothing, a vast void, and reality is an illusion, individuality is an illusion and the goal of spirituality is to end the false sense that you are separate, from anything. The cultures that have developed around that emphasize the collective, the group, with a de-emphasis on the individual.