Yeah, I'm with Anna on this one. Being a psychology graduate is a tough thing in itself, let alone if you're trying to apply for competitive jobs with a relatively unknown university on your CV. With psych the university you go to does seem to matter, so try your best to improve your grades and apply somewhere which has a little more gravitas, at least in the field of psychology. I'm not saying you have to go somewhere that's high up in the league tables, but rather that is known for good research in psychology and that sort of thing.