Should i drop Chemistry in yr13??

I do Maths, Further Maths, Physics and Chemistry. I got predicted A*s for all three other subjects and B in chemistry, i currently resitted chemistry but im not really sure i did well, think the best i’ll get is probably A predicted. I’m planning on studying maths or maths with mathematical physics in uni so chemistry is definitely not essential. But I’m planning on applying to oxford Maths and apparently 4 alevels are more beneficial if you do further maths since some uni don’t consider it as a real subject. But i’m really struggling with chemistry and i don’t really like it also apparently year13 chemistry will be even harder and i don’t really want to spare energy to study it(i get much better grades in maths and physics with less effort somehow) my initial plan was, drop chemistry if i didn’t get predicted A* after resit, and now im not really sure if i should really keep it regardless of what i got in resit