Want to quit but should I?

Hey all,

I'm currently nearly a year out of university. After 6 months dealing with JSA bulls*** I finally found a job as a shop assistant in a local convienience store for 3 days a week. However, I've been there 4 months and the stress of the job has me feeling extremely depressed and wiped out.

I have to do a lot of social interaction on the till and with my co-workers, I have to do tasks extremely quickly and then get scolded when I don't complete on time due to my lack of experience and co-ordination issues. They have frequently refused to allow me holiday, and they are njot even sure if I can have the one pre-booked holiday I had before I started there. I also frequently have sensory issues as the uniform has materials that put me on edge and customers often smell or brush their hands against mine and I just want to jerk away violently whenever this happens and go wash!

It's got to the point where I'm struggling to sleep from worrying about having to go and feeling sick and crying in the breakroom. I feel so exhausted from this that I haven't been to properly function in my time off, anmd it's meant I haven't been able to do my hobbies to help me feel any better.

My parents have advised me to stick it out til I can find another job, but I've been so tired that I haven't really been able to apply for any in a decent manner. I hated the JSA, but I don't know if I hate this job more. Really don't know what to do! Help?