Quitting is not permanent: It’s always possible to pick up your chosen career path with a different company at a later date.
You will be able to pay the bills: You can get a new stream of income before you quit your job or eliminate most of your expenses temporarily and live off your savings for a short while.
Health insurance and retirement funds won’t cease if you quit: Do some research and transfer your 401(k) or similar to another company.
Quitting won’t ruin your resume: If you quit doing something interesting, this will often make you more attractive to employers in the long run.