Recruiters are just car salespeople in a suit and you happen to be the car. Sure, it's nice if they put you somewhere that's a good fit for you and the company, but as long as there's a body in a chair they get paid. And you might be surprised just how much of a cut they take too.
As far as your real problem I can offer some sympathy and advice although I think you get it based on your post.
I took a job, at a non-trivial pay cut, hoping I'd make it back in other ways. Not only is that not happening but I work for the King of the control freak kings. If you know who Milton is from Office Space, well, I don't have a red SwingLine either but I've sure got his office. Like you, I'm bored, angry and running backward in reverse and I'm pretty much doing nothing I'd have chosen had I known what the job really entailed.
The one thing I can say, however, is that not going out, working out, or whatever you do outside of work just makes it worse. You need that stuff to build up a reserve so that when the chance opens up to get out you are able to see it and act on it. It's hard, I struggle with it, especially when I've been jacked around during a day, but it's gotta be or it just gets worse, or at least it does for me.
Good luck with it.