See you can be weak in a subject, but are you interested in it. The basic way to choose a course is to differentiate only on the basis of interest. Now BA Hons. course is a comprehensive course and you have read specialized topics of economics in the course. So be sure that you are interested in it or not. If you are weak in the subject then its easier to make it strong but if you don't have interest in the subject, then it can cause trouble. So if you are interested in the subject go for it else go for any other subject of your choice.

To know more about Economics visit the link below:

https://www.careers360.com/courses/economics-course

I hope this answer helps. All the very best for your future endeavors!