Hi! A lot has already been said so I will just comment on subject requirements for Psychology. Different universities will ask for different subject requirements and some do not even specify any. So the best way forward for yourself, is to browse the course website pages of a few universities that you are interested to apply to in future, and check what they are asking for before you commit on your subject choices. The reverse would also work, whereby you stick to your subject choices, and shortlist the universities that will have no issue accepting your application for their Psychology course. An example of where your subject combination is an issue is with UCL. UCL wants 2 subjects from this list: Biology, Chemistry, Mathematics, Physics and Psychology. It is a BSc and not a BA.