This is just a rumour but there are many signs of a generational curse on my family. There is a  lot of cancer and diseases that run in the family as well as mental illnesses. If this not just a rumour, how can I be completely sure my family is cursed and how does one break this kind of curse...

  I was born in a Christian based home and recently found Satan. I have already dedicated myself to Satan, but usually, find myself having doubts. I want to find a way to be free of doubts and fear. If you have any words of encouragement and even ways to break it, please tell me. Thank you.