Please consider reaching out to others whom you trust; your father, or anyone whom you look upto perhaps? If you still don't find any support, please contact the child helpline 1098.
Please remeber that regardless of what anyone may say, the abuse is real for you and it is not your fault, in any way. Continue to seek support on this matter.
Go and complaint to the other members of your family. This is a crime and you shouldn't allow him regardless of him being your relative.
This is biggest crime , listen this what always happens and victim ended up getting suicide and criminal escape , please say to family members if not you threaten him whenever he comes near to you , once you fear him and your life will ruin, be brave you didn't do anything wrong