so i can tell you about physics A level but i’m doing AQA so the exam board will be different but i assume we learn around the same things , i know that its not that different than GCSES it just goes deeper in context such as nuclear particles, the second year is something i can’t tell you about cause i’m in year 12 :P
but it’s still kinda hard but like everything you get used to it , i do suggest that you look into your subjects that you want to study, watch videos look at exam specification so you understand what your getting your self into