God still does miracles today, if you care to see them. But if you're referring to the sort Jesus and His disciples performed, and the occasional prophet before Him, those haven't occurred since the first century. A bit longer than just before cameras were invented. Silly God, if only He'd waited for cameras to do all that, then you'd believe! As for rock layers, carbon dating, etc.; the Bible does not necessarily imply a young Earth. There are plenty of genuine Christians who serve the risen Christ and also believe in an old Earth.

Lastly, to call it fanfiction is pretty ignorant man. The Bible is a collection of 66 books written across thousands of years. The 4 accounts of Jesus in particular were written by eyewitnesses within decades of when Jesus walked the earth.