TA then teaching? CELTA then language teaching? They not going to make you rich, though.
Have you done any voluntary work, like the PTA or anything? Any sort of experience like that?
What skills do you have? You're my age, so might have got through uni with handwritten essays. Can you use Excel and Word and so on?
I would write down everything you are keen on in a job, in terms of tasks - and another list of things you really don't want. You say you're not interested in care or nursing, but is that just the hands-on side of it? Would you do administration or reception work in a medical setting? This is why you need to consider the tasks rather than the job title.
Think also about working environment- would you want to work outside at all, even when it's tipping down and a biting wind? Are you okay with always being sat at a desk? How much physical work are you up for? (My knees have some opinions on this one these days.) Would you do shift work, evenings, overnight, unpredictable hours? What about commuting? How far are you prepared to/able to travel to work?
There may be a lot of things where you don't know, because you don't know what is involved, or haven't tried, and that's okay, too.
This should all start building up a profile of possible jobs. Then you can look at required qualifications, whether you already have that or need to do some training.
My Mum started out with temping once we were old enough to be left home alone for a while, and got to try a number of different places, but she did have some secretarial qualifications and experience from before we were born, and had done Word snd Excel at evening classes. I think she quite enjoyed trying different workplaces out before one of them decided to offer her a permanent place.