Should I quit my job?

Been working at this company for almost 2 years now and I want to quit immediately.My mental and physical health are taking a toll. I even cried last night thinking about if this is really what my life is all about. I'm not happy at this job anymore. Rules became stricter but system didn't improve. I am overworked, underpaid, sleep-deprived. While I feel it is best to quit, I also feel guilty as 2 years ago, this is the job that I prayed for. I also do not have another job lined up after this if I quit. But IDK just thinking about this job gives me anxiety now. Any thoughts on this?