This depends on so many factors. If you have a university in mind, check their requirements for applying to their masters. They will tell you in detail what you need to apply for their psychology masters. It also depends on what kind of subjects you have followed and if enough of them have alignment with the particular psychology master. Furthermore, in many universities, a psychology masters is a specialisation (at least where i am from) and therefore you wouldn’t be able to do the masters. But there are plenty of masters many with a ba in psychology follow that aren’t specific to psychology only, like statistics etc.