Job is giving me unhealthy anxiety

My job has gotten so out of control that I have been getting very intense anxiety and I’ve never had anxiety like this before. Today at work had me feeling so defeated. I just recently moved into a position and no one trained me, yet everyone likes to judge and point out (in a negative way) every single mistake I make. I don’t feel comfortable coming to my boss because she has a very aggressive tone and other coworkers have made comments to me about my job being on the line. She also made a negative comment today that I feel was directed towards me. I feel like I’m having a mental anxiety crisis right now and I hate feeling like this. I feel like it’s also throwing my cycles off because my periods very late (neg pregnancy tests). I did apply to other jobs. Can everyone please say prayers and send good vibes to me while I wait to hear back about all the applications I sent out. I will greatly appreciate it. I can’t quit this job until I have another one, so I have to keep going through this.