LPT: If an authority figure is toxic, leave. It will only escalate
Every time I said "eh, they're not the greatest leader, but I'm just here to do my job"/"I just love this extracurricular and don't want to quit"/''Maybe we'll learn to get along eventually", they went out of their way to reach my breaking point. And everytime I look back and realize it would have been a better idea to just leave at first sign of discomfort on my part.
I'm not saying instantly leave your job the moment your boss gives an unfairly harsh criticism. But it's the right moment to start looking for other jobs-so you can comfortably have another one before she reaches the "unbearable" stage. Trust me, she will.