I know this is going to offend a lot of people here, but keep in mind it is pure logic so the truth is the truth. All i ask is that you be respectful and open your mind to reason, that also means avoid namecalling or insults (which a logical fallacy known as ad hominem).
en.wikipedia.org
With that out of the way, here is logical proof (facts) that your god doesn't exist.
1. If this god of yours exists, why would he allow evil such as cancer or the holocaust? He is powerful enough to stop it, yet doesn't? Makes no sense.
2. If this god of yours exists, who caused god? How can you believe that god caused all of this, yet say that nothing caused god? It is unlogical. Again makes no sense.
3. If this god of yours exists, and if this oppresser in the sky really wants to "save" me, he could easily prove to me he exists. He could easily spell his name in the stars or perform a miracle. Yet he doesn't. Yet again makes no sense.