Hi Mightyfrea.
You are young, free and single, with no ties and a British Passport (so, I take it you can come to Spain under EU rules, or is this correct?), so that’s a bonus, as anyone your age with a family to provide for would find life in Spain very difficult right now.
I say that, because unemployment rates are horrendous in most places here, but you will still have bills to pay.
Do you speak Spanish? Because without it, you will find life quite difficult, even in areas where there are many English speakers. And without Spanish, it will be very difficult, if not impossible, to find any legal work here.
Do you intend to stay in Spain for some time (longer than 3 months)?
Because if so, you will need to sign on for residencia and this will require you to show proof of healthcare and income.
This will mean you either have to find legal work, so that your social security will be paid by your employer and you will have your income proof.
Or, you will need to show evidence of private health insurance and an income or savings which will sustain you while living in Spain.
As you are a single person, I would recommend looking at living in one of the major cities, where there is more hope of finding work (although it is still very slim) and more chance to find new friends and acquaintances. And in any case, you would probably find it isolating living in a rural area.
What I would suggest is, give it a try for another 3 months and honestly assess whether those rose coloured spectacles still work under the present economic climate and your love of Spain will continue while you are working or looking for work.
Good luck!