Is it difficult to learn science subjects?

I think that learning science subjects is extremely difficult. When I first began, it was very confusing to remember the natural theories. However, after a while, everything feels much more comfortable, and I can really start to get to grips with these subjects through hard work and effort.

Well, to be honest, I think that learning science subjects is extremely difficult for me. In the beginning, I was confused about how I could understand and remember the natural theory. However, after a while, I understood that it takes hard work and effort.