IELTS Speaking topic: A subject you didn’t like before

Describe a subject you didn’t like before but have interest in now.
You should say:
what it was
when you studied the subject
why you didn’t like it before
and explain why you have interest in it now.

Well, I’m afraid that the subject that I didn’t like in my high school was physics. But I had to learn it because of the exams, you know, it was one of the compulsory courses during the entire middle school for six years.

My physics teacher always tended to be demanding with us, he seemed like making the abstract theory more obscure, and sometimes I didn’t understand what my teacher had said, and he also left endless homework to us, which really made me frustrated. I felt that physics was the most challenging subject in the world.

Another reason was that there were too many abstract formulas I had to remember. You know, I was not good at memorising things, so I often used the incorrect formula in the exams, and made lots of mistakes and got low marks as a result. But after I grew up, I found that physics was a really indispensable curriculum in the school education because it could help me develop the logical and rigorous thinking pattern so that I sometimes found myself a critical thinker. Besides, with the knowledge of physics, I’m aware of many physical phenomenon round me, such as optics, mechanism, which helps me understand the intrinsic principle of many devices.