I believe that God created this universe with the laws required to bring physical life into existence. I also think there's a good chance that He made the laws in such a way that abiogenesis is possible.
That's fine with me. God having made the laws of chemistry are not a threat to the possibility of abiogenesis. That would only mean that abiogenesis came about because God made it possible.
That would prove the Universe is old, but what about the Earth? Is the Earth itself only 6,000 years old?
I am pleased you believe God created the universe. I believe he explains clearly and simply how he created life in Genesis 1 and 2. Since God created the heavens and the earth "In the beginning", the earth shares the same age as the rest of the universe. Earth existed long before the creative periods mentioned in Genesis chapter one began.