Well everyone's said some really good advice here, there's not much more for me to say.
But I want to stress something that's really important - look for POSITIVES!!! It's way too easy to focus on the things that are going badly in our lives, be it lack of job, lack of a partner, lack of friends - whatever.
But there are always good things in our lives, if we just look for them. Not necessarily amazing or wonderful things, but they might be just that little thing that's good that lifts you up enough to get your head sorted out. See a film, go and have a drink at the local bar, go and watch a game or whatever, just try and remember how to have fun, and how to enjoy yourself.
Networking, as has been mentioned, is crucial. The old saying "it's not what you know, it's who you know" has never been more true than in this day and age.
Also, sometimes when we get these 'flat' periods in our life, it can be a sign that a big change is needed - maybe take up a new hobby that you'd never thought of before: photography, skydiving, scuba diving, lawn bowls, knitting, whatever! Go back to school, extend your education. Learn another language. If you're stuck in a rut, break out!
Same for jobs - you don't have to do the same job you've been doing previously. Why not look at completely different fields? Start out small and work your way up. Check the papers or wherever you have job listings, and cast your eye over some of the other sorts of jobs available, whether it's working as a mechanic or a waiter or office admin assistant or whatever. If you've got the enthusiasm, you'll be noticed.
There's nothing else I can add to the advice already given. If the army suits you, go for it. It's not my sort of thing, but it might be yours I dunno.
Just keep your chin up, stay positive and remember - thousands of people love you purely because you're a Pixie member
CasperTG