Psychology is a science, and psychologists are scientists. It is obviously not controversial to say that everyone is a scientist, of course not.
Newborn babies are people, too. Are newborn babies also psychologists?
Answer with psychological knowledge, human psychology includes perception, thinking, memory, emotion and so on. (specifically, copying books by yourself). These things are not known to everyone, and people will have fantasies about their feelings, and no one knows them. Many people don't know their way of thinking, how their memories are left, and how their emotions are generated ... They don't know the basic things of psychology, of course they are not psychologists. People have both consciousness and subconscious. Most people don't know their subconscious, and they don't know that they have a subconscious. Of course, they are not psychologists.