I was told once that by the time you're genuinely considering a big change - by the time you're aware there's an abyss - the answer is probably "do it." There a

I was told once that by the time you're genuinely considering a big change - by the time you're aware there's an abyss - the answer is probably "do it." There are things that are normal fears - "I have a serious medical condition and can't risk being without health insurance," that kind of thing - but "abyss" questions tend to be the sorts of things where you can't really articulate what your concerns are, or they're more about status or perception or just a general risk aversion ("what if I never find a job again?" "do I really want to be a divorcee?" "will my peers think I'm a failure?"), and the reason you're really even considering it is because you're currently miserable. People tend to stay at jobs longer than they should, in relationships longer than they should, and in misery longer than they should.