I do psychology a level. Ngl I don't love it just because the teaching at my school is very different to GCSE. It is interesting, but its hard because there is a lot of content. Its easy to understand there is just a lot of it. However, I do find it really interesting and it is helpful to have a science subject for an a level which unit like. Although if your doing art and chemistry that doesn't matter too much. I would say now choose an essay subject because then you will have a really broad range for unis (if that's the path your taking) as you've got creative, essay and science subject.