You cannot practice the rituals without the physical object. Buy a small Cruz de Caravaca (usually silver or wood). Many PDFs include a "blessing of the cross" that you, as a layperson, can perform.
The Cruz de Caravaca remains a beautiful synthesis of Christian miracle lore and folk protection magic. Whether you are a curious historian, a devout Catholic, or a practitioner of white magic, the full PDF book serves as a reliable manual for invoking the highest protection. livro cruz de caravaca pdf download full
The best time to start the novena is on a Friday at sunrise (Venus day/Martyrdom day of Christ). Keep a glass of water next to the cross and change it daily. At the end of 9 days, the water is considered "crusader water" – use it to water plants or sprinkle around the house. You cannot practice the rituals without the physical object