Welcome. This is not a halloween "cult", this is a group for spiritual advancement and empowerment, as intended by Satan. Satan will lead and guide you, but he is not your slave driver. He wants you to be strong and free. The enemies of him and you want you to be enslaved, however.
I suggest you read every single topic on this website: https://www.satanisgod.org/www.angelfire.com/empire/serpentis666/index.html
Read up on Christianity, the gods, spirituality, meditations to do, etc. Everything you need to know is listed there, so please STUDY it like you would a textbook for class. There is not much better advice that you can be given at this current time.
Good luck to you, and please ask more questions if you have any.