I cancelled all my interviews today.
Why did you cancel all your interviews today?
I was sick of being there and applicants tried to be a dick to me.
I understand that you are frustrated, however, you can't just cancel meetings at the last second just because you are sick of them. Cancelling things without prior notice will get you a bad reputation.
If I was treated like a human being, I would have gone. I don't care anymore that the interview windows are wasted.
Doing those interviews is your job. I get that they can be stressful, but it's what you agreed to do.