I open all windows throughout the night and close them in the morning before its heating up. Then staying indoors most of the time when it’s too unbearable outside, or sit outside under some trees or in a forest - the trees keep the temperature bearable most of the time. i also have a water spray bottle and occasionally spray my skin with it all over.
Fan and air conditioning. Sometimes, I spend so much time inside that going out in the heat warms me up like a fireplace does to someone after spending time in the cold.
I've never had air conditioning, so my options are to utilize ceiling and standing fans (until eventually they're just blowing warm air and not cooling you off), sticking a fan in the window to blow the heat outside, drinking something cold, eating something cold like ice cream, taking a shower, or going somewhere that has air conditioning to hang out for a while.
When I have nothing to do, I lay a wet towel on my bed and lay on it; with another wet towel over me like a pop tart sandwich. I then have a fan blow directly towards me, and I am cold within minutes. A bit too cold sometimes, even. But I tell myself to not complain because the other option is melting.
i overheat super easily so i can't function or live without air conditioning. it plays a huuuuge factor in staying cool for me. showering and then putting off drying my hair helps too, but that isn't really good for my hair so i only do that if it's really bad. aside from that, i leave my ceiling fan on, rely on ice packs, cold drinks/treats. and if i'm outside i try and stay out of direct sunlight, cause otherwise i get hot and woozy
i am literally the same as digi ^ really can’t stand the over hot weather, always makes me feel worse and i can never cool down easily. spend any hot days living next to a fan and drinking a lot of ice cold water, if i have to go out for something then i make it quick, stick to the shade and keep my hair up to try and keep some heat off my back.