I'm a bit the same. 22, little motivation, always the path of least resistance, just plodding along. I don't particularly like what I do, it's alright, it pays more than enough, but it's not something I want to do forever. I think that's basically what you've said, only a little more urgent.
First of all, have a plan, even if it turns out to be shit later. A financial one would be the best start. If you want to move but can't see a way out, start thinking about to make one. Start saving up money over six months, one year, two years, whatever. For instance I wonder about doing photography or something, another degree, France, I don't know - once I've bought the stuff I want in the next few months, I'm going to start saving and build up the momentum to allow me to take some risks.
In some ways you may need to write off a few things in your life - say 'yes, it's going to be dull for a while but I can stick this out because the possibilities I'll open up are far more rewarding'.
Find things to do and stuff to get involved with. Qualifications aren't the be all and end all - without them it's more difficult to get straight in at the top but to get a foot in the door it's more about what skills you have; stuff you can demonstrate in terms of teamwork and all that crap. Enrich your CV while you're stuck doing something you don't like so much.
Finally, the whole motivation thing - as pointed out, you do have some if you're bothered about getting out! If you're the same as me it'll take a shitty job like that to propel you out of complacency and make you try harder to find what you want.
I reckon everyone but the really lucky ones have been there, so chin up
