How to do Narsimha sadhana as a beginner?

How can a beginner get into Narsimha sadhana? What to chant (mantra, 108 names, stotram, kavacham)? What day to start? How much sadhana? Is fragrance like a dhoop necessary? Does materialistic chase fully stop with him or can I still pursuit material? Also what are the benifits from Narsimha sadhana and where can I learn more about him?