Well, some would say that they are doing harder A levels, or just as hard subjects. But, at A Level, all subjects would seem hard at first, because of the big jump from GCSE to A level. A lot of hard work can help make those subjects easier for sure.
I'm sure a lot of people are doing the same subjects, or similar subjects next year, so you will get a lot of support in terms of the workload. I'm doing Maths, Further Maths, Bio, Chem and Physics next year. I'm sure that if you work hard, have interest in lessons and stuff, you'll be absolutely fine.