Lower the temp, cook longer.

In fact I use the lowest settings on a gas stove and a good 15 mins.

Some times cover with a steel lid.

Low temp typically prevents sticking

I also use olive oil occasionally…

Never wash iron with soap. I wash with water and a blue scotchbrite after. Never use green you will get sticking… dry immediately if there is oil/greasy residue back in the over at 320 for 45min it should season into the cast iron