If you can believe that, then you can believe the universe has also been there, always will be......
Nope. As I said, the earth and universe are imperfect, passing. Look around you; everything, including yourself, decays. God is beyond the human mind's ability to understand in terms of existence and non-existence. He is forever, endless, everlasting. So is every soul, including yours, that will be either with Him or in the exterior darkness.