Does psychic really exist?

The world is vast and full of wonders, and there are too many things that cannot be explained and understood by our current level of knowledge. There are many unsolved mysteries and supernatural phenomena in the world, but I think I'm actually skeptical about psychics. It is true that there are countless people in this world, and everyone may have their own specialties, so there must be someone who is better at mysterious things.

This so-called psychic is more common in backward rural areas, but some people believe it very much and some people don't, but my family belongs to the former. I remember one time my grandmother went to see the witch who was said to let the dead family enter the upper body to talk to the living. When she came back, I asked her what was going on. My grandmother believed it and said it was my grandfather's mother. My grandfather's mother fell ill and died when my grandfather was less than four years old. After grandpa's mother got into the body, he began to cry, and then told him that the life below was very hard, and then said that he was also very hard when he was alive.

I am very surprised at this, but I don't believe it or not, because there are so many things in this world that we don't know. Of course, there was such a scene in an American drama I watched recently, but at the end of the story, a man upstairs was helping him find the information of that person and then contacted him with that kind of radio headset. I think there may be fake so-called psychics.