i'm from the us so i don't know how the universities work abroad. that said...

i'm currently pursuing a major in english because it's pretty much the only thing i'm good at (i can't do anything mathematical or scientific and i don't get history). i don't love my major, which makes it really hard to stay motivated. so i guess my situation is different than yours-- i'm jealous that you have two passions that you could feasibly pursue and be happy. right now, i'm focused on getting my diploma since that's been such a struggle already. i don't even know what i'd want to do with an english degree. i'd much rather be in your position where you have two things that you're super interested in.

my advice would be to remember that nothing is permanent. as hard and frustrating as it is, you can't predict the future (ugh that frustrates me every day) and you kind of have to trust that things will work out. if you end up graduating with a degree in something you don't like, you don't have to be stuck in that field forever. you can go back to school or pursue a masters in something else (again, not sure how the education system works in denmark so i'm sorry if my suggestions are completely off base). it's not necessarily a setback and it doesn't have to be a regret... if you pursue a degree that you realize you hate, you'll appreciate the other even more.