Please help! Need advice

I don’t know what to do!!! I left my job of 4 years about 2 months ago due to poor management and being taken advantage of. I started a job at a contact center and I absolutely hate it. I’ve been there since I left my recent job and it makes my anxiety go crazy. I was just out the last 2 weeks because I ended up with covid for the first time and I go back tomorrow and my anxiety is through the roof, to the point I’m making myself sick and nothing can calm my nerves. I know this sounds stupid but I’ve cried while at this new job because of my anxiety and the way people have treated me.

I know it’s just a job and I shouldn’t get this way but I can’t help it. Idk what to do. I really do not want to go back. I want to quit but idk what to do. I’m a single mom so I have to have an income but I’m lost. Please give me some advice!