Quitting a job is unfortunately one of those things that at times seems like a great idea, but the best thing you can do is just kind of stick with it for long enough to find another job. The chances of getting hired whilst already employed are like 100x higher than even quitting for a day and saying that you are unemployed.

I know what it's like to come straight out of school and go into the workforce. It's a huge, huge change and so many people expect you to perform like a machine because you're straight out of college and you're supposed to make a good impression. Heck they treat you like you should know how to have worked there for years.

All I can say is good luck, and the next time you want to quit. Find another job first, tell your next employer that you don't like it and why, and it will show them that even though you don't like something, you know how important it is to work, and that you will push yourself through the stress and discomfort. It's really a good thing to show a potential employer.