It sounds like you’ve already decided not to believe that the bible says the earth is young.
Actually, I think that human creation by God is fairly young. I have no idea how old the earth is and I doubt that any other scientist does either. I will await for the Millenial Kingdom to ask Jesus how He did it, when and whether he road around on dinos as the picture avers! All I know is that God created homo sapians and as for dinos, perhaps he was having fun!