Regular poster, have NC for this. In a very small nutshell - I have a pretty fancy job which pays exceptionally well. Got a major promotion earlier this year (yes, boo hoo for me. Feel free to ditch thread now).
I really enjoyed about 50% of the job pre-promotion. I now only enjoy about 30% of it. I have never been cut out for certain aspects of the job, but I was in the past able to balance my failings in those sides of it by excelling in other areas. Now the expectations in all areas are about 200% higher and I have been told I really need to "up my game" if I am to achieve what's expected. It's not that they've misrepresented the promoted job to me - I knew in theory what it involved - but the practice is way harder than I anticipated. I could probably do the game upping but it would be seriously hard work and time consuming (e.g. having a week's holiday without full attention to Blackberry every day is just Not On, required to do weekly evening dinners with clients). Pressure is relentless. I am starting to think that I simply can't be arsed.
To give some context my Mum died a few months ago. Dad had died several years previously. Both died young. Neither is here to be disappointed in me if I ditch it (or proud of me if I succeed). I just turned 40. I am financially fine because I inherited a property and a small lump sum, plus I have my own savings. I don't have expensive tastes. In the last 3 years I've gained a fab fiance who is my rock. He's always known me as a high-flyer and is proud of me for that. He earns plenty money of his own and we have no children.
I feel my identity is very tied up in my job. When I do well in it I feel very validated and glad to have a good brain. Ditching it now would mean wasting many many years of study and slog and obviously mean giving up a lot of potential earnings.
This is not so much an AIBU because the answer is obviously "Do what's right for you" but more of a "Did you do it and do you regret it?"
Thanks for reading.