Working with Sallos

So I’ve been doing a lot of research and I believe Sallos is the demon I’d like to work with. I have acquired tarot cards(that have a demon on each card) a 6x6 scry mirror(only size I’ve been able to find here locally), some candles and I’ve got a demon book that has his sigil in it. Also Sandalwood incense. Is there anything else I need? Also what’s best way to go about this?