I've just finished year 12, I'm taking physics and planning to take it at uni. Taking AQA, by the way.
Don't underestimate it. Plenty of people taking it at my school are having a bad time because it's... I think "unexpectedly complicated" describes it best. I think it was kind of like the easiest science in GCSE but that doesn't mean it'll be easy at all at A-level. The maths isn't that tricky (no calculus!? come on) but it can get hard figuring out how to approach a question and topics like fields and circular motion are less intuitive and harder to conceptualise. Particles isn't too bad once you accept that nobody actually knows what they are.
There's a surprising amount of memorisation needed. Electricity was the hardest 1st-year topic for me because you just don't really know what's actually going on. Kirchhoff's 2nd law is a lifesaver though.