I'm hardly one to talk, but I wasn't comfortable until well past 3MM. Or maybe I'm not comfortable yet! Having just spent the last hour or so checking finances, I'd say I still fret. I only decided that by any standards, this $$$ should be enough, very recently. I just reworked my part time gig a couple of weeks ago, to say I'm really not planning on working. I (sortof) felt felt financially free when our fistful of rental mortgages was paid off, and that just happened earlier this year. We still have a high overhead with taxes, property taxes, health, vehicle and property insurance, college for 2 kids, vacations, etc. I'm protective of the 'stache. It took a lot of effort to get here. The numbers say I'm ok, the statistics say I'm better than most, but the emotions aren't so decisive. DH has no such worries, but, OTOH, I'm the one who handles the finances and so the roller coaster ride is all mine.
But for you,
@Bateaux, if work sucks, definitely do something else. You've put too much effort into getting here to have someone else ruin a perfectly wonderful day. Quit the bad job and do something you enjoy, or nothing for a while. You can coast for the summer or until 2020, and it will all be fine. A little work never hurt anyone, and you can always get a job or a side gig, as you choose.