It sounds like a tough spot to be in, Dreamy. First, I would say there is no "right" decision. I got my degree at 18-21 as "expected" but it was not in what I started in, my true love. I did not go back and get that, through distance learning as you are doing now, until I was 51-56! I retired at 55 so the degree was not "useful" in that sense but it was what I wanted to study. I continued on to graduate school but then, a year later, decided I'd rather spend that money on something else.

Life is about doing what we enjoy and working toward what we want. It is not all "fun", despite being what we want (I want to eat, wear clothes, and have a roof over my head :-) but, if it is what we want, we can make it work, no matter what it is. If what you are doing now is not what you want now, then change to doing something you want. You can change back later, I've done it several times! I was in "night" school (we're talking pre-internet :-) from when I was 22-51, I just was not focused on the degree (but enjoyed taking courses now and then).

It would not be a "mistake" to come back later and pay thousands of pounds, etc.; provided you had the thousands of pounds. We all have the impossible daydreams and the here-and-now ones and you can't know if you will have the thousands of pounds but you also can't know if you will want, need, be able to go back later. We cannot live in the future any more than we can live in the past? We just have now. You might have "planned" to get X degree and Y job but life rarely goes along with plans for the future other than in a general sense. Make a new plan for now and a little way into the future, some plan you can put your energy and interest behind. It will be more healthy than working at something you are not that interested in anymore for the sake of a "maybe" future you are uncertain of?