Full blown anxiety attacks now when I have to go to work

I'm so burned out. I'm sick of taking three times the calls everyone else does. I have the daily reports to prove it, I have brought it to the attention of supervisors and my Vocational Support Advocate, but nothing gets done to reduce my call volume. I want to quit so bad, but of course I can't afford to. So every workday morning, I wake up and dread slowly washes over me, tightening my chest, wrecking my nervous system. I fight the urge to cry, and push myself to go through the motions and get on with the day.

But to be honest, Idk how much longer I can do this.