Hey!
So while I have very little idea about entertainment I can talk to you about business
Like you, I am much more of a science/maths person but I still love business. It is quite a simple subject actually, but you just need to know the content and how to apply it. I use to be horrible at writing essays but with hard work and constantly submitting them to teachers for feedback I actually improved so much. Doing well in business studies requires dedication, you can't always rely on it as a natural talent, put hard work in and marks will reward you.
The syllabus is your bible, it tells you everything that can ever be in an exam so if you pursue the subject always keep the syllabus with you. Also with business you have chances for personal research through case studies, you can look up businesses you love and see how they are so successful and then write about them in essays, it definitely keeps things more interesting considering business can be very dry at times.
Hope this helps!