I think many people are in a similar situation.
I'm in my 20's and work 35 hours a week for a handsome salary (40% tax bracket) but I hate my job and I mean, it's making me ill. I used to be rock solid but in recent years they've pushed me and pushed me, I've been squeeze out the loop and literally spend half my days trying to find something to do. I used to be a manager but now I'm not even sure what I do, all the other managers are 'buddies' and socialise together - I stood no chance. Very bad culture in this place, they stick together like a pack of hounds.
The other issue is I got myself in to a heap of debt, I'm paying it off aggressively but even at the current rate it won't be clear until the year's end.
I asked for VR and they said no, yet they have no work for me... it's insane, I'm an expensive clock watcher, it's making me very 'volatile', my temper is shorter than a full stop and I often wake up with anxiety ... or just fail to sleep solidly at all. The main concern is me losing it at work and thus my job.
I never thought I could get this way, I'm tough as old boots emotionally, but I tell you something once you start rolling down hill it's very easy to wear the brakes out and go in to free-fall.
My only saving grace is a business I'm working on but my full-time job gets in the way, I can't leave until I've cleared my debt to push my new business so it's a damned if you do, damned if you don't scenario.
Whilst I don't really have any advice for you, just thought I'd let you know there are others in the same if not worse situations!