First time making bread need some help
I just made my first loaf of bread and it came out very doughy and dense.
My starter is a week old feed it every 24 hours with 120g flour and 110g water. I used 10g salt , 500g of flour , 225g of starter and 250g of water and then mixed it kneaded for 12 min. I let it sit for 2 hours then shaped it into the loft but it kept flating out so I rolled it up every half hour I did that for 4 hours. I then went to bake it for 30min at 450f after that I let it sit out for 6 hours before cutting it open to find it wasn't fluffy but dense like a bagel and doughy. What did I do wrong?
The temp that it was sitting out at was 74f and humidity was 44%