If you want to use the line of reasoning that something has to come from something else than that same rule applies to your god. So according to YOUR line of reasoning, nothing can exist without something else creating it. So some kind of Super God made your God. Then that means a Ultra Super God made Super God, and so on and so forth. Isn't it a LOT more rational that if something can just exist that the universe is that something that just exists and skip adding in unproven, invisible, supernatural beings into the mix? Especially when there is yet to be even one shred of evidence or a logical argument to support their existence?
No it doesn't because we are speaking about a created entity vs an uncreated entity. An unborn and uncreated entity is in no need of being born as it always was. A created entity on the other hand is temporary, does and needs to be created again. For instance at one time there was no earth and no sun but earths and suns existed elsewhere.
However although various stars and planets and universes were born and died, God always existed as He doesn't compose and decompose because He is eternal and unborn.
This comes from the Buddha and nails it down quite nicely.
There is, O monks, an unborn, unoriginated, uncreated, unformed. Were there not, O monks, this unborn, unoriginated, uncreated, unformed, there would be no escape from the world of the born, originated, created, formed. Since, O monks, there is an unborn, unoriginated, uncreated and unformed, therefore is there an escape from the born, originated, created, formed."