Sarah:
My wife can tell you that I get extremely, unhealthily frustrated when things don't work.
When I flip a switch, I want something to happen, damnit!
I admire your apparent calmness.
My unhealthy habit is analyzing/obsessing/trying to understand processes I don't know much about. I don't really get frustrated by things not working. I get frustrated not knowing answers to the how, when, why, what, where, who, etc. and will dive in to learn as much as I can so I understand what's going on. But, just enough to know, not enough to attempt to do it myself in my cases.
I obsess/worry/fret...not so much get frustrated, if that makes sense. I wouldn't say I am calm about it. My mind is unhealthily whirling with all the different scenarios that may play out these next few days.
The good news is the window AC unit in our master bedroom a friend loaned me worked wonders over night and the portable AC unit on wheels (cools 300 sq feet) we bought yesterday afternoon to get us through the weekend, has made the living room/kitchen area bearable to hang out in.
At this point we at least have two rooms we can shelter in during the hottest parts of the day (1 - 9 pm). The other rooms are okay with a fan on in the morning until about 1 pm, when it just gets too unbearable.