My question is: How much longer did you remain at an unpleasant job once you hit your retirement number?
For me I didn't have a fixed number... But if firecalc and other calcs said I was good - I was good. It was a combination of things needed - enough money, some income streams (we have a rental), and a small enough budget... I'd been working on all of those things trying to get comfortable with success. But hadn't quit yet because:
* if I stayed I might get a severance package since we'd gone through several corporate reshuffling, splitting, selling off, purchasing... I let one of the supervisors I was friendly with know that I wouldn't mind being on a lay off list. Didn't let my immediate supervisor know since he would have been a jerk about it.
* Work was easy and mostly enjoyable - except when it wasn't. We'd been through about 8 years of 2 major layoffs per year (see purchase/selloff/corporate reshuffling above)- but 'unfortunately' I was considered a valuable worker on a productive team... so our group had mostly been spared and I was still getting good reviews and the layoff wasn't happening for me.
* I was running firecalc obsessively. Plus trimming my budget with all the easy trims (look for recurring expenses and target them first), divert more to savings (401k, 529, ESPP, extra mortgage payments). That showed me that my budget in retirement was probably a lot smaller than my income. With every trim of $2-3k/year my "number" to retire was smaller.
This went on for about 3 years. Like I said, running firecalc (and every other calculator I could get my hands on) obsessively. ACA had passed so health insurance was no longer the deal breaker. One day my manager informed 3 of us we'd be travelling for a full week, every third week. I had teens at home, one in a not so great headspace... This wasn't a one time request to travel for a week - this was going to go on for months. And to make it worse, it was for a stupid reason that didn't serve the project well. I went home, ran the calculators again - and realized that I could retire and we could continue our lifestyle. Talked it over with my husband, he agreed. I gave notice the following Monday.
Ironically, my entire group and most of our campus site was laid off about a year after I retired... given a full year's severance. Oh well. No regrets.