I can't join the chorus of advocates for getting that degree here; it's a sensible idea, but I'd be a hypocrite. With no degree and a true dilettante's CV, I had to work for a few years more than you before I could afford to stop placating myself with long holidays and move overseas. The restlessness didn't end there; being rootless and bound up in constant limbo with immigration laws and limited opportunities occasionally gnawed at the thrill and romance of it all. But while I was sorting out what shape and direction I wanted things to take, I did all kinds of interesting work, picked up a few more skills, made myself look a lot wordlier on paper, went to some amazing places, and, most importantly, had enough time to spend trying out different ways of life to figure out which one made me happy. It's certainly not what I would have imagined at 22.
The glass-half-full for you: your position is utterly enviable. You're young, healthy, young, smart, and - yes- young. You know how to enjoy being alone, and you're not afraid to travel. You're a UK citizen under 30 and thus able to legally work in a greater number of countries than anyone else on earth. You have no career responsibilities holding you back from experimenting with any line of work you please, and no external pressure against pursuing whatever field of further study interests you if you're inclined. You seem to have no kids to support, no nagging spouse, and probably not a lot of burden in the material world. You probably don't even have student debts to pay off. Whatever money you can save up at home is actually worth something anywhere you could go.
All in all, you have about as much freedom to do what you please as is humanly possible, more than you'll ever have again for the rest of your life, limited only to your imagination. And you're moping? Stop that! You want to get out of Wales? Pack your bag and go. Go to Spain for awhile and keep on going, work for room and board or sling beers if you have to, live cheaply and simply, try out all the things you've ever wanted to and some you've never thought of, learn a few languages, be kind and open to everyone you meet, have lots of sex, drink lots of wine, spend lots of time out in the sun, and keep yourself in love with life. You'll eventually get older and find more pleasure in stability and routine, but while you're this young it's completely wasted on you.

