Changing A-Levels 1 year in

Hi, I'm currently doing A-levels: Biology, Psychology and Graphic Communications. I was super unsure about what I wanted to do and so just picked a range of A-Levels that differed immensely, however now, a year into my course, I've had a complete change of heart and may want to study English Literature, Fine Art and Graphic Communications (which could change to incorporate drama or film studies) (also I previously chose this but then switched last minute with my college), the reason why I had originally decided on Biology and Psychology was because I thought I needed to contribute to the world in some ethical way like being a nurse or a social worker, and I'm a pretty well adjusted and achieved all around good enough GCSE's to get into more academic and scientific subjects, but my true passion lies in the creative arts. On my last test of the year, I achieved a D in Biology (an all time low for me) and a D in Psychology (I'd gotten this grade before) and an A- in Graphics ( I always get a B or A), showing a great disparity. Looking at UCAS kind of brought this on as I realised I would want to be either involved in a special effects, graphic design or freelance area of the creative industry or a journalist (on what, I'm not sure yet as I'm very much involved with politics and all sorts of other subjects, though to do politics I'd probably have to do a politics a-level, but don't get me wrong I'd love to write about fashion or art or literature) which, especially in the case of a journalist course, wouldn't allow people who hadn't done English Lit./Lang. A-Level to join the course, and if I want to get into a good Art Uni I suspect I'd be higher on the list with two a-levels in art. Honestly I'm just really all over the place about what I want to choose, but as you've probably noticed, I want to carry on with Graphic Comms. which, I don't know if that's possible with my college, or if I'd have to change all of my subjects, which, as long as I'm doing some sort of art, I'd be fine with but it's not exactly ideal. My college had turned me down when I wanted to switch out Psychology, which is understandable because it'd be a 3rd year doing one a-level but I don't know what they'll say about 2 a-levels. I also don't know if changing A-Levels and doing 3 years would hurt my eligibility for Universities as, to be honest the switch isn't because of my grades, because although I mentioned above how low they are, this isn't due to lack of ability as my professors have mentioned but more so due to my lack of passion and time put in. Anyway if anyone's been in a similar situation I'd really appreciate some advice or if you know the perspective of the Universities on this issue, plus anything I might not have thought of. Thanks a bunch