I don't know where you live and what your particular skills and interests are, you may wanna think about your past accomplishments and things you've enjoyed doing...
There will be a chance to socialize and make friends no matter where/what you study... and also later at work.. !!
Also, what you don't study 'officially' now, you can study it later, while you work you can sign up to courses or 'adult ed' classes or such... while you have the funds to sponsor it!!
You can also read books, take an online course, there's lots of info online...
Seriously take a look at number of unemployed and their profiles, and who's hiring what where... (depending on where you wish to live...) It may change in a few years, some trends will probably stay the same..
Return to a standard BA/BSc... History, English, Politics, Sciences etc
Advantages: Not commiting myself to any career, could be interesting, chance to socialise and make friends.
Disadvantages: Expensive, doesn't lead to a career and could end up unemployed again.
Some English majors do technical writing (they write manuals) or copywriting, some of this work is 'outsourced' to independent contractors now.. Some may teach classes (would you be up for THAT?

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History - work in an institute/museum (if you're lucky!) or school, teaching history...
Politics (huh?) - does your government still intend to employ or fire people? (Greece wants to fire 30.000 public workers...?) Other possible venues of work: maybe institutions like UN or EU (I don't know where you're from? if EU doesn't fall apart sooner) or organisations that deal with paperwork (can you handle THAT?

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You can get employed in the public sector with different profiles too I think, check what it's like where you live.. (gov sites sometimes have job ads too..) Would you be up for doing politics and such?
Sciences - research institute (lab/...) or industry or in education again? (you could check who hires most and where would you feel comfortable working - primary or secondary schools or colleges etc? I've heard many schools are underfunded too, where I live it's not so easy anymore for teachers to get jobs, we have less kids than years ago, and the gov is economizing - not sure how it's over there; teaching can be stressful, especially for someone with sa, some do seem to quite like it though..)
Healthcare... Occupational therapy, social work, dietics etc
Advantages: Solid career, the chance to help people, less debt.
Disadvantages: Working with lots of people, commiting myself to a career, patients might not always be friendly, unusual career for a man, could get boring.
Do you know any people who work in this? Could you 'job shadow'? Or just visit a spa? (some hot physiotherapists working there, sorry!

male too! haha)
I've heard social work in USA is quite difficult, where I live it's lots of paperwork too, not so easy to actually help people... Occupational therapy - don't know if you can work 1 on1 or in small groups or bigger groups? Could ask around maybe?
Dietics hm.. some people distinguish dietician vs nutricionist, not quite sure what the differences are, and what's available where you live.. I do believe in the power of healthy nutrition, it can also be lifelong learning (sometimes nutritional guidelines change due to new research/studies etc) You could also check if they mostly work 1 on 1, would this be easier for you?
Any job could get 'boring' or stressful - so you need some time off and some 'hobbies' or 'other interests' too!!
If you are someone who likes things to be 'creative/inventive' or do 'problem-solving' or do things differently, check if those jobs can be done in different ways too? (ask people who work there, or observe and give ideas?)
Engineering...
Advantages: Varied career, chance to make a difference
Disadvantages: Stress, working a lot in an office, maths (i'm ok at it but I don't really enjoy it either).
I've heard some engineers mostly work with 'paperwork'/computers too... (8 hours of computer a day; a study has shown that 5+ hours computer a day can cause depression, concentration problems and other health problems..) There are also a lot of Chinese engineers etc. You don't really need to enjoy something, you need to be fairly good at it and tolerate working it!!
A trade... plumber, surveyor etc.
I could work for myself.
Do some 'job shadowing' if you can... (eg a plumber could take you to his workshop/to a client as 'apprentice'/unpaid help maybe? to observe if this is something you could like/tolerate doing?) Or at least talk to people doing this... Or observe when someone you know gets stuff installed... How are you with loud noises? A plumber sometimes needs to cut metal or walls, it can be pretty loud...
You will probably go into different people's homes, so you must be okay with some people contact too.. (and be friendly enough so they ask you back!

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I don't know what a surveyor is, what do they survey? Houses?
Real estate market has been 'down' so hm?
Before signing up for anything, read 'What Color is Your Parachute' and talk to people who have studied course/s you're interested in and what they are doing now, ideally find some studying right now (the universities probably have online forums too!), recently graduated and/or some people working 'in the field' for a while... to give you their perspective...
There's a site with how much people earn (in USA I think), take a look there too...
Where I live, there are more unemployed 'highly educated' people than eg plumbers I think... Check what the situation is over there-?
Any job will be partly 'exposure therapy' where you interact with people somewhat, to varying degrees... And if the job is 'lonely'/isolated, you may need to plan for other activities in your free time, where you can meet people (eg an engineer can go hiking and work in the garden to 'combat' office work, and meet people on hiking trips or such..)
A dietician can maybe meet a significant other at work, and a teacher may need to schedule 'alone time' reading or walking with a dog and no one else, to counter 'too many people' at work... So, some things to consider...
You seem to be a person with many interests, maybe it would be also good to read Refuse to Choose by Barbara Sher? She speaks about finding a 'good enough' job or 'umbrella job' for various interests etc. While you can of course also keep your other interests!! (And schedule them for time off or holidays or such!!)