[flor1s]

I loved my time studying for a masters degree, and after graduating I started with a PhD in Japan which has been an amazing experience. If you want to learn many new things, meet interesting people from all over the world and you don't mind going back to taking classes I would definitely recommend it. Don't worry too much about the math and CS fundamentals. The stuff you need to know to do a master's in CS is quite useful in practice, so it's valuable to learn about that anyway. Some specialisations in CS require more math than others, so keep that in mind.

If you don't know whether to do CS or business administration, you might be able to do something in between, e.g. business administration with a IT specialisation.

(I got master degrees in Computer Science and Business Information Technology from the University of Twente and am currently a PhD student in Empowerment Informatics at the University of Tsukuba in Japan)