I commend you on working at a call center. The fact that you're willing to work somewhere like that despite the difficulties it represents says a lot about you. With that said, maybe this isn't the best time for you to work there. It may not be worth it right now if it's causing this much stress. One option would be to put in your 2 weeks notice or whatever & stay on good terms with your current employer so you have a decent reference for the next opportunity you seek out. I think you'll find just about any other job way less mentally taxing than this one. I firmly believe in pushing yourself outside your comfort zone, but sometimes you have to start small & work your way up. Maybe try something else for a while, then try to come back to this job when you're a bit more comfortable with it. You can do it as long as you don't give up & don't pity yourself.