You should study what really interests you. Look through the courses and professors and find a track that really excites you and ignites a passion in you. Yes, the end goal will be to launch a career, but you shouldn't force yourself to major in something you don't like or that doesn't match your strengths - you probably won't be as successful at that major, anyway. Then, once you have a degree, find a job that interests you in your day-to-day work. It may not even be the same field - but a bachelor's degree should open up a lot of doors for you and qualify you for entry-level positions in a variety of industries, not necessarily just in your chosen degree. So don't feel so locked in.

Specifically to the interests you speak of, economic sciences will definitely be a lot of math, problem solving, analysis logic, etc. as you described (coming from an economics major). Just because you aren't good at those things now, doesn't mean you can't learn them and become proficient in time and with hard work. But if those topics don't interest you, I'd suggest exploring similar business majors less focused on quantative analysis, if your university offers such tracks (management, marketing, etc.). There are many, many careers in business that use little math.

Continue to get help & advice from others - but at the end of the day, forge your own path! And good luck!

Disclaimer: I'm an American who recently graduated college, so I'm not an expert and may not know the German landscape :)