Your plan sounds reasonable except -- don't trust that pH reading while the chlorine is so high. You may be getting a falsely high reading. Once you get a true reading, then you may need to use some muriatic acid to lower it. Your calcium is high. Is that all from fill water? You certainly don't want to use any cal-hypo in this pool.

Run the pump 24/7 while you are trying to clear the cloudiness and clean the cartridge filter as needed.