I've never lost my temper or said a cross word to a flight attendant. I've never had the occasion to. Besides, more-often-than-not I get nice little things from them like extra Biscoff cookies in the morning on Delta (I love those things!) and have had a free mini bottle of wine Christmas night.
That being said, you are CRAZY to go back into the skies! On my last overseas flight, I had to wait for this huge crazy-haired dude to get out of the bathroom, and when he finally did, the room smelled so bad I gagged. I really had to piss so I went in anyway, to find he didn't bother to flush the toilet after his explosive diarrhea. Then, amid the used paper towels all over the tiny counter and overflowing trash reception I saw the crown jewel of the flight...a blood and clotted used tampon (my first!) sitting proudly on top of everything else. By this point I was in the midst of dry heaves, and after turbo-pissing I scrambled out of the bathroom and found the stewardess nearby unpacking a carton. I said "I'm really sorry to tell you this, but that bathroom is disgusting and needs to be cleaned really soon." Her face took on a resigned expression and she said "Thank you, we will get on it." I felt so bad for her. Nobody should have to deal with that kind of filth on top of all the other responsibilities she had.
That experience alone (on top of the fact I get airsick) would keep me out of that job forever. Stay on the ground! Save yourself!