It is not easy to get a job in a historical field in the UK right now. Whichever route you want to take - museums, archives, academia, television - you're looking at some combination of years of postgraduate-level study, hard work and luck. If it's your dream, then no one can tell you not to chase it, but be aware that it's not an easy one to chase - and the text of your question suggests that maybe it isn't the dream anyway. The good news is that history isn't a terrible degree as a starting point for other careers. History graduates tend to do pretty well in a wide range of private and public sector careers (not least in politics - it's one of the most common degrees for MPs to have). It teaches quite a few useful skills, and British employers tend to care more about things like work experience, connections and degree classification than they do about what you actually studied.

If you're worried about feeling silly in your degree because you don't live and breathe history, don't be - the bulk of history students like history, but relatively few are massive history nerds. If you do the baseline work and have an interest in the subject, you'll do ok and feel at home. But it will involve a lot of reading and writing about history, and if that's not attractive then it's worth reflecting on what you'll be getting out of the experience.

Recent grad. Finding a job has been extremely difficult but I think that mostly my own situation and everyone's is a little different. It depends on your finances. Getting a degree debt free because your parents support you? Maybe not the best degree bit it isn't bad if you like the study. Going into debt to afford your tuition? Not a great return on investment. Don't feel like you'll feel silly. Only an asshole makes fun of people for ignorance. If you don't feel like you could handle the course work of reading a book or 2 a week then thats also something to consider. Im happy to answer any other questions you have too.

History is important for understanding the world, and the study of history is about evaluating evidence, analysing arguments and writing in a clear and persuasive manner.

So it can be a useful subject of study for careers where those skills are valued (civil service, international development, military, policy / think-tank work, political analysis, some elements of journalism, publishing, staffing for MPs) as well as those careers with more directly historical aspects (heritage tourism, academia, teaching).

Personally, today, I wouldn't do a history degree unless I could do it as a joint degree: History and Politics, History and International Relations, History and Security Studies etc would be a better bet - it just broadens the scope a bit, and makes you potentially 'fit' a wider range of jobs, and gives you a slightly 'crunchier' edge.

I'd also try, during undergraduate years, to think carefully about what you want to do, and pursue extra-curricula activities that support that: get involved in the URNU/OTC, write for a student paper, intern with a think tank, something like that. It's not enough to turn up on the job market with a degree anymore.

Employers are not interested in 'historians', they are interested in analysts, advisors, managers, consultants, facilitators, trainers, reporters - people who can apply their knowledge and skills to practical problems.

I'd also invest time in learning a second language (you don't have to do that as part of your formal studies, but it will help distinguish you in the job market, because most of your cohort will be hopelessly monolingual).

Also, be aware that most of those jobs will be in London. Some, but far fewer - and at lower levels of pay - are in Edinburgh, Cardiff, Belfast, and maybe Manchester. There might also be international opportunities if you have the right level of 'crunchiness' (i.e. if you can link it to Security Studies, International Development etc).

If you want to do think-tank / policy / advisory / political analysis work, be aware that it splits two ways: you can do 'public interest' stuff, for well-meaning, left-leaning, organisations, where you will work for a pittance, or you can follow the money and find yourself being a lobbyist for 'Super Tobacco Arms Trader Planet Burner Incorporated'. The choice is yours now, but if you get married, have a family, then there might come a point at which the money is worth more than your conscience.

That said, the life of a history teacher in a good private school, with opportunities to progress into management, to get involved in extra-curricular activities, and pursue your historical research and writing on the side, is not necessarily a terrible one, if your financial needs are modest. I know a chap who went down that route; he's now (20 years after graduation) a deputy headmaster and the author of three books. You'll need the right accent and dress codes for that, though. (Teaching in a state school would be a nightmare, unless you have a real vocation for it).