Current Chaos going on...
First, what you need; at the bare minimum, get picrel. No, don't cheap out. Ideally you want several guides. This is so info piles and you are well informed, take consideration that missing info may be deadly.
Use Al to fill any blanks, ask it first, ask it later.
Second, UNDER NO CIRCUMSTANCES are you to be novice AND summon dangerous yokai. They're gonna whack you.
Third, do not forget to honor your word and pay up and make your offerings.
This isn't the people of Satan, they do have a sense of a deal is a deal and honor.

Current, I summoned Jorogumo, offered my blood as payment, my enemy was delighted by her attac.

Next: Lots to learn still.