I have responded in a longer post on this thread, but wanted to come back to this post and tell you that I often take long breaks off the internet to keep myself sane. I don't check any of my internet posts regularly (although admittedly I probably should given the amount of support I saw on this thread) but provide explanation for my absence.
Thanks!
Hey OP, welcome back!
Since you've made multiple responses, I will add a bit more than my "here today, gone tomorrow" post.
While not quite in the same shoes as you (e.g. able to call it quits at 26), I started my mega-corp job at age 20 and by the age of 35 or so figured I had enough to leave and just hang. Perhaps get my PHD, who knows what was next. I had been pulling in a decent salary and living pretty much below my means.
I didn't, somewhat because of some external factors in my life but also because mega-corp had a defined benefit pension. But even the thought that I could go *if I wanted to* made things better. (Or perhaps I was just afraid to give up a bunch of OMY's.)
I ended up FIREing at age 51. All along I had been pushing for that step - to be able to retire EARLY and just do every day what I wanted to do.
The only "problem" was by that time, I had a 7 year old child. One that I didn't want to travel without, and one that I wanted to spend time with. I also didn't want have my child see me sitting around all day or to think dad out playing every day was typical. So, in retirement I picked up a part time gig as an adjunct teaching at a local college (teaching Computer Science). Mostly to keep my mind busy AND as a mechanism to keep me from doing something stupid like getting another go-go-go IT job. That was 12+ years ago - I ended up working full time after a few years of being an adjunct.
Some here on ER.org would look at that with disdain (well, perhaps that is too strong a word). I did not need the teaching job at all in terms of my financial well being, yet here I am doing it. The why has to do with the needing to be useful, and at the same time be in a more relaxed environment. Some people don't need that or find it in other endeavors. Only you can determine what gives you joy and keeps you alive, i.e. provides meaning.
It's funny, I am now considering moving on (i.e. retiring). I was the first of my set of friends to retire, and now will be pretty much the last to really retire. The why is not because the j*b bothers me, in fact I am struggling more with this decision than I ever did back in 2009. It is mostly because the clock is ticking, and there are things I would like to spend more time doing while I am able to do them. "Live every day as if it were your last."
Good luck with your decision, and welcome to the forum.