The effectiveness of added fans can’t be overstated. When I lived in the deep south w/o a/c for two or three years I had ‘fan on a stand’ on rotate in each room combined with a ceiling fan in my largest room. Make a pitcher of iced tea each day and store it in the fridge. Drink served over ice during the day. Take a cold bath at night to cool you off so you can sleep. Put one of the fans on stand aimed at your bed if you can stand that too.
Good luck.