I kind of feel like I’ve screwed up with the A levels I’ve taken because I don’t enjoy them but at the same time they’re easier to get a job with.
a) there's more to life than work. Rephrase that, realistically, it's kinda important - in which case, it's better if it's a job you enjoy.
b) the value of the A'levels you've done depends on where you're applying to and what you're applying for. In my experience, most unis require STEM subjects for entry onto STEM related degrees but entry to Arts/Humanities courses is sometimes based solely on the number of UCAS points, irrespective of subjects (as
@Athene says). This though varies from uni to uni. So...Lancaster want an A in English Lit to study English...Leeds Beckett just want the points. It probably depends on whether you're looking at Russell Group or Post-92 institutions.
c) Check the number of years Student Finance will fund. I can't remember whether it's 4 or 5. The point I'm making is, if you don't like your degree you can always switch at the end of the first year and start another. Obviously, it's more expensive so I'm not recommending it but it's nice to know you've not totally committed yourself to something you don't like. Also, IIRC, it used to be the case that you could "drop out" in the first couple of months without accruing much in the way of penalties (ie. not using a year's worth of funding). Check this out - it's 3/4 years since I was involved in admissions. You also have to bear in mind hidden penalties in any housing contract you've signed (unless you're staying at home).
d) Have you considered a Combined or Joint Honours degree?
e) If you really want to do something other than STEM, complete your present A Levels and take a year out. Get a job, put some money away and do another A'Level at night school.
f) live your own life. 🙂
English, Drama and Religious Studies. Hmm...here's the thing. Depending on how a course is taught, Religion plays a big part in understanding both English and Drama. Certainly, it's difficult to talk about (for example) Scottish Literature without consideration of Calvinism etc. English and Drama - either as Single Hons or Combined Hons is well established at most unis. You could always do a PGCE after your degree if you wanted to teach. Alternatively, there are Arts jobs - in both the commercial/charity sectors. Check the Arts Council and /or Charity Jobs for an indication of the sort of money they pay.