If I was starting out now, I would get into web design, accountancy etc stuff that will always be in demand, can be lucrative because you do need qualificiations and skill, and you can be self employed doing it which means you can choose when and where you work. Any job is going to involve some contact with others but if you are self employed, you have control, and if you became successfulyou could even employ someone else to do the bits that involve human contact!
I dont know how experienced or qualified you are but something that I was thinking about was buyiing into a franchise. You need a lump sum of money to buy into it, between say £5000 and£20,000 depending on what it is, and you usually get a geographical area to cover and you get al lyour equipment included and the comany logo to use which means you arent setting a business up from scratch , you are buying into a welll established business that is proven to work, and you have mentors in the company to get advice on how to run your bit of the business. I havent explained it very well but if you google it you will get the idea. What you actually do can be anything from car valetting to selling specialist cosmetics, to dog food! There are usually road shows that go around the country where you can speak to lots of different companies and get info. Like all these things you would need to do your research, but it is a genuine principle, you can make a decent living out of it. Even things like the Betterware catalogue can be made to make a pretty good income if you are prepared to work the hours and put in the effort. But thats true of all self employment, If you know you re a fairly lazy or low motivated person, you are better of working for an organization! If the idea is attractive but you haven’t got the money to start up your own business, I would do something else, anything at all, and save up the money with it in mind as a goal.
Another idea is to do a quiz on a jobsite where they asses your personality and match it to jobs you might like. Your ‘personality’ will be someone who likes to be alone, as kittycat says like ‘greta garbo’!