I am decaying in horror

The novel is about two main characters, the first of whom is "Maria," a young woman suffering from a mental illness that pulls her into seeing unnatural nightmares at a rate beyond that of a normal person, causing these nightmares to turn her life upside down! Maria tries to control her nightmares, especially the recurring ones, and despite visiting all doctors, therapists, and others, she finds no solutions or treatment anywhere! Therefore, her mother suggests she try art therapy. Maria implements this therapy exactly and begins to paint her nightmares on canvases. Indeed, the nightmares stop recurring, but they do not stop appearing in her mind. Maria continues to paint her nightmares on canvases for years, becoming a very famous artist and selling her paintings to many people at high prices! Until the day comes that radically changes Maria’s life, when the nightmares move from the paintings into real life, and the nightmares begin to cause serial murders, with everything in the painting perfectly matching the victim, turning the painting into a real nightmare!! Maria tries to control her wild nightmares without success before she loses her mind and before she becomes a suspect in a series of murders because she is the artist of the nightmare paintings!! What happens to her, and how will she escape the nightmares in her sleep and in reality, and how will she survive the monsters that escaped from her paintings!? Maria, who cannot even remember her childhood or who her father was, becomes trapped between nightmares and a series of ongoing crimes…!