Should I quit a job that causes extreme anxiety

I know the economy is trash right now but my job is causing me severe anxiety. Essentially I’m a vibrational mismatch with my role and it causes me feelings of dread so often. The company is having a huge event in a few months and I’m tasked with organizing and coordinating pretty much every detail on top of being the emcee in front of tons of people to facilitate team building. The issue is that I’m super introverted, have terrible self esteem and don’t feel capable of being a good host. A huuuuge part of me wants to walk away from my role and start over in a new industry that’s more suited for me but I have no degree, a husband and kids to support.