Although it is a bit superstitious to say this, there is a saying here that you should kill a rooster on the first day of moving to a new house. Killing a rooster in the new house can ward off evil spirits. You dreamed about graves after moving to a new home. Maybe your new house used to be a cemetery. Is your new home a unit building or a detached house? If it is a unit building, if you dream about the tomb, it may be a problem with the house itself. If it is a single courtyard, it may be an issue with the feng shui of the courtyard. There is also a saying that if you dream of a grave, you should be more careful in your daily activities.
You can’t not believe these things, nor can you believe them all. Don’t make yourself uneasy because of these things. Sometimes you think too much in reality and are under great pressure. Put your hands on your abdomen or chest when sleeping. I'll also have nightmares.