Is it wrong to quit right now.

I been at my current job for almost 3 years but I am getting so sick of it. Management sucks, i can barely stand for 8 hours because if a broken foot from highschool, and I just get so stressed thinking about the place sometime I throw up before work. Is it wrong to quit and go to school with no other jobs lined up. I live with my parents and have about 3000 in savings right now. I guess the question is should I leave a job in such uncertain economic times.

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