If you think that people have no internal psychology at all, then that's certainly something. If you think you do and nobody else does, then you're just a psychopath and I can understand that. If you yourself don't have a consciousness and you claim this, that would be pretty strange. There are a lot of problems in psychology, but there is no reason to dismiss the entire discipline. And there is no reason to dismiss it by calling it philosophy. Some study of philosophy could seriously improve your reasoning; especially when you try, as in this thread, to do some seriously poor philosophy of mathematics.