One by one:
So the universe is infinite? Then why do I keep hearing about how old it is?
Because cosmologists simplify things for journalists, and then journalists distort or outright misrepresent those simplifications, such that when a common person like yourself hears mention of the age of the universe in conventional media, you are misled into believing things that simply are not true.
When people talk about the "age of the universe," they are really talking about the "time since the Big Bang." We still aren't able to say with confidence what could be "before" the Big Bang, but the most
current cosmological models treat our timeline since the Big Bang as simply a localized patch of spacetime that exists within a much larger manifold.
The bottom line is simply this: we don't know that "nothing" exists "before" the Big Bang, so we cannot say that the Big Bang is any kind of "beginning." The Big Bang is a singularity, and like any singularity, there exists a horizon between us and the actual singularity itself. A horizon is something beyond which we cannot see, just like when you are looking a the tops of the mountains or the edge of the ocean.
Now, when you look out at the horizon on the ocean or the tops of the mountains, do you conclude that the world must begin at the horizon because you cannot see beyond it? Do you assume that nothing exists on the other side of the mountains?
Because according to the Bible (which according to earlier discussion has never been proved wrong) God was always here.
Why is that answer acceptable for your God but not acceptable for the universe?
He was not created as he is the original Creator.
But you don't know this. You simply believe it because it was told to you by someone in whom you put your trust. Do you think that they reached this conclusion independently, or do you think they also just believe it because it is what they have been told?
If the universe is finite, it had to start somewhere, some time.
No, not really. Spacetime could be like the surface of a sphere. Finite, but without an origin.
Since you can't make something out of nothing, that is basically what you have argued.
Afraid not.
If you are now calling all the scientists wrong who claimed that the universe stated at the big bang, then I question how anything scientific can be believed if it can be changed to fit your argument.
I haven't changed anything. I simply have a deeper understanding of the facts pertinent to this discussion. I hope you will take the time to deepen your own understanding.