Archonix, would it be accurate to summarize your question as, "Why do you (I) believe in the Christian, Triune God?" (as opposed to "god(s)" in general).
I've studied the Bible - at university, on my own, read lots of books about the Bible, focusing particularly on Jesus and the first Christians and the New Testament. Through this, I see the strong historical evidence that Jesus was an historical person (he really lived) and that he was a Jewish rabbi with a very original interpretation of the Law (Old Testament and Jewish religious requirements). There is strong evidence that his students (aka disciples) were so completely transformed by him, his miracles, his teachings, and yes, his resurrection that they, in turn, transformed society as we know it, even though it meant a painful death for many of them.
The more I learn about Jesus and allow him into different aspects of my life, the more I experience his love, wisdom, courage, patience, and joy.
I'd be glad to say more, but, again, don't want to type out a whole book here.