are the courses you're considering swapping to BPS accredited (and would swapping at this point keep that accreditation?). If so then there's probably little harm in swapping as the BPS accreditation means all the clinical/professional Psychology pathways would still be open to you. But it also probably means you'd be studying a lot of the same modules as on the pure Psychology degree because the BPS requirements cover quite a lot of general Psychology content, so that's something to consider - have a look at the specific modules if you haven't already and see if they're different enough to make it worth swapping. I would be cautious if the degree you swap to is no longer BPS accredited as that does shut a lot of doors in terms of future careers that you may not want to shut at this stage. This is all assuming the Psychology course you're currently studying is BPS accredited of course.