In fact, I personally think that history and politics are inseparable. My political and historical achievements are also very good, and I am also very sure of some extracurricular things, not the type of dead reading. So these are just a sentence, that is, no matter which one you want to choose or give up, you can't separate the two, and you can't ignore which one just because you haven't studied or which one is useless to your future work.
There is no harm in doing more self-study and study.
As for this special stage of your third year of high school, I have been there before and have just been admitted to the university. So I think you'd better choose history, which is good for your future college entrance examination results. So you should spend more time studying math. That's what I do. While others are desperately studying history and politics, I am basically watching and doing math. But even so, my political and historical achievements are not worse than others, which pays more attention to learning methods and learning efficiency besides talent. As can be seen from your above description, you are not bad in politics and history, and you are a good prospect. Then you can spend more time looking at weaknesses such as mathematics.
So I personally think that the history college entrance examination is better than politics. But this is just the general situation. It's easier to answer questions.
From the point of view of occupation and university specialty, in fact, universities and liberal arts nowadays do not have too many requirements for politics or history, and even science students study liberal arts. I majored in public management and administration, so I have a deep understanding.
However, although there are not too many requirements for students' study subjects when enrolling students, the advantages of our liberal arts students will become more and more obvious when studying, which is actually the foundation laid by high school and our strong interest.
As for my future work, this is a problem that bothers me very much. I'm not sure whether the target is the government or the enterprise. I may also study human resource management, which is an enterprise and administration is the government, so I think the key question is not what you learned in high school, but what your interests and ambitions are.
So you don't need to think too much about your job, you can choose according to your interest in science.
Remember, interest is the best teacher to learn.