Please be aware that it is summer in Australia. It will get warm, maybe, even, hot. Happens every year around this time.
Drink water and wear sunscreen. That is always a good starting point. It may help.
If you have a generator, run it to drive the aircon and to hell with the neighbours.
If you don't have a generator, just think of your dear old Mum and how hard she would have done it all those years ago. That should make you feel better by knowing that you are as tough as the old lady.