I'm in my 30s and get the broken thermostat issues too. We have a ceiling fan in our bedroom and livingroom that have become my greatest allies. I've also learned there are other benefits to cold showers.

I have to do my chores in breaks. 15 minutes up, 15 minutes down under a ceiling fan. An example is vaccum one room then sit. Both due to fatigue and overheating. Not as quick as I would like, but stuff is getting done.