What am I doing wrong with dough?

Relatively new to pizza making, but my dough is really sticky and doesn’t stretch very well. I’m making a Neapolitan style:

* 500 g flour (used bread flour) * 300 g water, * 10g salt * 5g instant yeast

I mixed salt and water first, then added yeast, kneaded for about 15 minutes until internal temp was ~75F. Dough was really sticky and I let it proof for about 2 hours, divided and let proof again for 4 hours and then refrigerated.

The next day dough was really sticky and hard to work so had to use a lot of flour so it wouldn’t stick to pan

Would love to hear other recipes. I’m baking in Ooni Koda 16